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16136684391744 = 2638744912227
BaseRepresentation
bin1110101011010001110101…
…0101110100110101000000
32010010122121021120100000000
43222310131111310311000
54103340412201013434
654153031313000000
73253560040124430
oct352643525646500
963118537510000
1016136684391744
115161590724aa4
121987492b53000
139008b5191817
143db03c06a2c0
151ceb439b4b99
hexead1d574d40

16136684391744 has 504 divisors, whose sum is σ = 55017503985600. Its totient is φ = 4599836688384.

The previous prime is 16136684391743. The next prime is 16136684391757. The reversal of 16136684391744 is 44719348663161.

16136684391744 is a `hidden beast` number, since 1 + 6 + 136 + 68 + 439 + 1 + 7 + 4 + 4 = 666.

16136684391744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16136684391743) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1319752159 + ... + 1319764385.

Almost surely, 216136684391744 is an apocalyptic number.

16136684391744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16136684391744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27508751992800).

16136684391744 is an abundant number, since it is smaller than the sum of its proper divisors (38880819593856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16136684391744 is an frugal number, since it uses more digits than its factorization.

16136684391744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12719 (or 12688 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 63.

The spelling of 16136684391744 in words is "sixteen trillion, one hundred thirty-six billion, six hundred eighty-four million, three hundred ninety-one thousand, seven hundred forty-four".