16625978032 has 40 divisors (see below), whose sum is σ = 33271933952. Its totient is φ = 8039995200.

The previous prime is 16625978021. The next prime is 16625978041. The reversal of 16625978032 is 23087952661.

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, 899023 + ... + 917329.

Almost surely, 2^16625978032 is an apocalyptic number.

It is an amenable number.

16625978032 is an abundant number, since it is smaller than the sum of its proper divisors (16645955920).

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

16625978032 is a wasteful number, since it uses less digits than its factorization.

16625978032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20177 (or 20171 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 16625978032 in words is "sixteen billion, six hundred twenty-five million, nine hundred seventy-eight thousand, thirty-two".