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18069928022016 = 212351319312371
BaseRepresentation
bin1000001101111001110111…
…01001000001000000000000
32100222110122100112020100000
410012330323221001000000
54332024203033201031
6102233113233200000
73543336442631043
oct406747351010000
970873570466300
1018069928022016
115837460317192
12203a0a6400000
13a10caa2b50b0
14466836a08c5a
15215090eec3e6
hex106f3ba41000

18069928022016 has 1248 divisors, whose sum is σ = 63366687354880. Its totient is φ = 5095283097600.

The previous prime is 18069928021961. The next prime is 18069928022017. The reversal of 18069928022016 is 61022082996081.

It is a happy number.

18069928022016 is a `hidden beast` number, since 1 + 80 + 69 + 9 + 280 + 220 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (1248).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (18069928022017) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7621225311 + ... + 7621227681.

Almost surely, 218069928022016 is an apocalyptic number.

18069928022016 is a gapful number since it is divisible by the number (16) 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 18069928022016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31683343677440).

18069928022016 is an abundant number, since it is smaller than the sum of its proper divisors (45296759332864).

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

18069928022016 is a wasteful number, since it uses less digits than its factorization.

18069928022016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473 (or 2439 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 18069928022016 in words is "eighteen trillion, sixty-nine billion, nine hundred twenty-eight million, twenty-two thousand, sixteen".