16562388011172 has 12 divisors (see below), whose sum is σ = 38645572026096. Its totient is φ = 5520796003720.

The previous prime is 16562388011167. The next prime is 16562388011189. The reversal of 16562388011172 is 27111088326561.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×16562388011172² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690099500454 + ... + 690099500477.

It is an arithmetic number, because the mean of its divisors is an integer number (3220464335508).

Almost surely, 2^{16562388011172} is an apocalyptic number.

16562388011172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16562388011172 is an abundant number, since it is smaller than the sum of its proper divisors (22083184014924).

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

16562388011172 is a wasteful number, since it uses less digits than its factorization.

16562388011172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380199000938 (or 1380199000936 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 16562388011172 in words is "sixteen trillion, five hundred sixty-two billion, three hundred eighty-eight million, eleven thousand, one hundred seventy-two".