16500636216 has 48 divisors (see below), whose sum is σ = 44936160360. Its totient is φ = 5469819840.

The previous prime is 16500636193. The next prime is 16500636239. The reversal of 16500636216 is 61263600561.

16500636216 is a `hidden beast` number, since 1 + 6 + 5 + 0 + 0 + 636 + 2 + 16 = 666.

It is an interprime number because it is at equal distance from previous prime (16500636193) and next prime (16500636239).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 620050 + ... + 646113.

Almost surely, 2^16500636216 is an apocalyptic number.

It is an amenable number.

16500636216 is an abundant number, since it is smaller than the sum of its proper divisors (28435524144).

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

16500636216 is a wasteful number, since it uses less digits than its factorization.

16500636216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266356 (or 1266349 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 16500636216 in words is "sixteen billion, five hundred million, six hundred thirty-six thousand, two hundred sixteen".