212665636511130 has 64 divisors (see below), whose sum is σ = 560213237380608. Its totient is φ = 51239015588160.

The previous prime is 212665636511087. The next prime is 212665636511161. The reversal of 212665636511130 is 31115636566212.

212665636511130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212665636511130² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212665636511130.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1976760084 + ... + 1976867663.

It is an arithmetic number, because the mean of its divisors is an integer number (8753331834072).

Almost surely, 2^{212665636511130} is an apocalyptic number.

212665636511130 is an abundant number, since it is smaller than the sum of its proper divisors (347547600869478).

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

212665636511130 is a wasteful number, since it uses less digits than its factorization.

212665636511130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953627931.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 212665636511130 in words is "two hundred twelve trillion, six hundred sixty-five billion, six hundred thirty-six million, five hundred eleven thousand, one hundred thirty".