16168957155 has 240 divisors, whose sum is σ = 33830020224. Its totient is φ = 7339921920.

The previous prime is 16168957127. The next prime is 16168957157. The reversal of 16168957155 is 55175986161.

16168957155 is a `hidden beast` number, since 1 + 6 + 1 + 68 + 9 + 571 + 5 + 5 = 666.

It is not a de Polignac number, because 16168957155 - 2²⁸ = 15900521699 is a prime.

It is a super-2 number, since 2×16168957155² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16168957157) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 89331165 + ... + 89331345.

Almost surely, 2^16168957155 is an apocalyptic number.

16168957155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16168957155 is an abundant number, since it is smaller than the sum of its proper divisors (17661063069).

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

16168957155 is a wasteful number, since it uses less digits than its factorization.

16168957155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 268 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 54.

The spelling of 16168957155 in words is "sixteen billion, one hundred sixty-eight million, nine hundred fifty-seven thousand, one hundred fifty-five".