210116665136 has 20 divisors (see below), whose sum is σ = 465258330192. Its totient is φ = 90049999296.

The previous prime is 210116665123. The next prime is 210116665141. The reversal of 210116665136 is 631566611012.

It is a self number, because there is not a number n which added to its sum of digits gives 210116665136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938020715 + ... + 938020938.

Almost surely, 2^210116665136 is an apocalyptic number.

It is an amenable number.

210116665136 is an abundant number, since it is smaller than the sum of its proper divisors (255141665056).

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

210116665136 is a wasteful number, since it uses less digits than its factorization.

210116665136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876041668 (or 1876041662 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 210116665136 in words is "two hundred ten billion, one hundred sixteen million, six hundred sixty-five thousand, one hundred thirty-six".