16156021662 has 48 divisors (see below), whose sum is σ = 39075049728. Its totient is φ = 4781906640.

The previous prime is 16156021657. The next prime is 16156021681. The reversal of 16156021662 is 26612065161.

16156021662 is a `hidden beast` number, since 16 + 1 + 560 + 21 + 6 + 62 = 666.

It is a super-2 number, since 2×16156021662² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 940278 + ... + 957305.

It is an arithmetic number, because the mean of its divisors is an integer number (814063536).

Almost surely, 2^16156021662 is an apocalyptic number.

16156021662 is an abundant number, since it is smaller than the sum of its proper divisors (22919028066).

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

16156021662 is a wasteful number, since it uses less digits than its factorization.

16156021662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897645 (or 1897642 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 16156021662 in words is "sixteen billion, one hundred fifty-six million, twenty-one thousand, six hundred sixty-two".