16166530664 has 32 divisors (see below), whose sum is σ = 32326257600. Its totient is φ = 7553038080.

The previous prime is 16166530649. The next prime is 16166530687. The reversal of 16166530664 is 46603566161.

It is a super-2 number, since 2×16166530664² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408692 + ... + 446499.

It is an arithmetic number, because the mean of its divisors is an integer number (1010195550).

Almost surely, 2^16166530664 is an apocalyptic number.

It is an amenable number.

16166530664 is a deficient number, since it is larger than the sum of its proper divisors (16159726936).

16166530664 is a wasteful number, since it uses less digits than its factorization.

16166530664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855353 (or 855349 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 16166530664 in words is "sixteen billion, one hundred sixty-six million, five hundred thirty thousand, six hundred sixty-four".