16888081616 has 20 divisors (see below), whose sum is σ = 37395038112. Its totient is φ = 7237749216.

The previous prime is 16888081607. The next prime is 16888081627. The reversal of 16888081616 is 61618088861.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75393110 + ... + 75393333.

Almost surely, 2^16888081616 is an apocalyptic number.

16888081616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16888081616 is an abundant number, since it is smaller than the sum of its proper divisors (20506956496).

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

16888081616 is a wasteful number, since it uses less digits than its factorization.

16888081616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150786458 (or 150786452 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 53.

The spelling of 16888081616 in words is "sixteen billion, eight hundred eighty-eight million, eighty-one thousand, six hundred sixteen".