16387210368 has 48 divisors (see below), whose sum is σ = 47155908150. Its totient is φ = 5462403072.

The previous prime is 16387210313. The next prime is 16387210387. The reversal of 16387210368 is 86301278361.

16387210368 is a `hidden beast` number, since 1 + 638 + 7 + 2 + 1 + 0 + 3 + 6 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15497262144 + 889948224 = 124488^2 + 29832^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7111353 + ... + 7113656.

Almost surely, 2^16387210368 is an apocalyptic number.

16387210368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16387210368 is an abundant number, since it is smaller than the sum of its proper divisors (30768697782).

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

16387210368 is a wasteful number, since it uses less digits than its factorization.

16387210368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14225029 (or 14225014 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 16387210368 in words is "sixteen billion, three hundred eighty-seven million, two hundred ten thousand, three hundred sixty-eight".