16254923556 has 24 divisors (see below), whose sum is σ = 37939716640. Its totient is φ = 5416656192.

The previous prime is 16254923497. The next prime is 16254923593. The reversal of 16254923556 is 65532945261.

It is a happy number.

It is a super-2 number, since 2×16254923556² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) 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 7 ways as a sum of consecutive naturals, for example, 165121 + ... + 244488.

Almost surely, 2^16254923556 is an apocalyptic number.

It is an amenable number.

16254923556 is an abundant number, since it is smaller than the sum of its proper divisors (21684793084).

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

16254923556 is a wasteful number, since it uses less digits than its factorization.

16254923556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412923 (or 412921 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 48.

The spelling of 16254923556 in words is "sixteen billion, two hundred fifty-four million, nine hundred twenty-three thousand, five hundred fifty-six".