16366864188172 has 6 divisors (see below), whose sum is σ = 28642012329308. Its totient is φ = 8183432094084.

The previous prime is 16366864188139. The next prime is 16366864188271. The reversal of 16366864188172 is 27188146866361.

It is a junction number, because it is equal to n+sod(n) for n = 16366864188098 and 16366864188107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2045858023518 + ... + 2045858023525.

Almost surely, 2^{16366864188172} is an apocalyptic number.

It is an amenable number.

16366864188172 is a deficient number, since it is larger than the sum of its proper divisors (12275148141136).

16366864188172 is a wasteful number, since it uses less digits than its factorization.

16366864188172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091716047047 (or 4091716047045 counting only the distinct ones).

The product of its digits is 111476736, while the sum is 67.

The spelling of 16366864188172 in words is "sixteen trillion, three hundred sixty-six billion, eight hundred sixty-four million, one hundred eighty-eight thousand, one hundred seventy-two".