16136564644530 has 256 divisors, whose sum is σ = 47764753920000. Its totient is φ = 3843466122240.

The previous prime is 16136564644511. The next prime is 16136564644537. The reversal of 16136564644530 is 3544646563161.

It is a happy number.

16136564644530 is a `hidden beast` number, since 1 + 6 + 1 + 3 + 6 + 5 + 64 + 6 + 44 + 530 = 666.

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 (16136564644537) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 329232666 + ... + 329281674.

It is an arithmetic number, because the mean of its divisors is an integer number (186581070000).

Almost surely, 2^{16136564644530} is an apocalyptic number.

16136564644530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16136564644530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23882376960000).

16136564644530 is an abundant number, since it is smaller than the sum of its proper divisors (31628189275470).

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

16136564644530 is a wasteful number, since it uses less digits than its factorization.

16136564644530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50974 (or 50968 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 54.

The spelling of 16136564644530 in words is "sixteen trillion, one hundred thirty-six billion, five hundred sixty-four million, six hundred forty-four thousand, five hundred thirty".