16389940588 has 24 divisors (see below), whose sum is σ = 34505139200. Its totient is φ = 6654562128.

The previous prime is 16389940573. The next prime is 16389940631. The reversal of 16389940588 is 88504998361.

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, 15403548 + ... + 15404611.

Almost surely, 2^16389940588 is an apocalyptic number.

It is an amenable number.

16389940588 is an abundant number, since it is smaller than the sum of its proper divisors (18115198612).

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

16389940588 is a wasteful number, since it uses less digits than its factorization.

16389940588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30808189 (or 30808187 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 16389940588 in words is "sixteen billion, three hundred eighty-nine million, nine hundred forty thousand, five hundred eighty-eight".