16117168507 has 16 divisors (see below), whose sum is σ = 17921502720. Its totient is φ = 14369586400.

The previous prime is 16117168481. The next prime is 16117168517. The reversal of 16117168507 is 70586171161.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16117168507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16117168517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2031294 + ... + 2039212.

It is an arithmetic number, because the mean of its divisors is an integer number (1120093920).

Almost surely, 2^16117168507 is an apocalyptic number.

16117168507 is a deficient number, since it is larger than the sum of its proper divisors (1804334213).

16117168507 is a wasteful number, since it uses less digits than its factorization.

16117168507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11474.

The product of its (nonzero) digits is 70560, while the sum is 43.

The spelling of 16117168507 in words is "sixteen billion, one hundred seventeen million, one hundred sixty-eight thousand, five hundred seven".