16264538736 has 40 divisors (see below), whose sum is σ = 43152316944. Its totient is φ = 5274984960.

The previous prime is 16264538713. The next prime is 16264538743. The reversal of 16264538736 is 63783546261.

It is a congruent number.

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, 4577205 + ... + 4580756.

Almost surely, 2^16264538736 is an apocalyptic number.

16264538736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16264538736 is an abundant number, since it is smaller than the sum of its proper divisors (26887778208).

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

16264538736 is a wasteful number, since it uses less digits than its factorization.

16264538736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9158009 (or 9158003 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 51.

The spelling of 16264538736 in words is "sixteen billion, two hundred sixty-four million, five hundred thirty-eight thousand, seven hundred thirty-six".