72022166510660 has 12 divisors (see below), whose sum is σ = 151246549672428. Its totient is φ = 28808866604256.

The previous prime is 72022166510647. The next prime is 72022166510719. The reversal of 72022166510660 is 6601566122027.

It can be written as a sum of positive squares in 2 ways, for example, as 31341343575556 + 40680822935104 = 5598334^2 + 6378152^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1800554162747 + ... + 1800554162786.

It is an arithmetic number, because the mean of its divisors is an integer number (12603879139369).

Almost surely, 2^{72022166510660} is an apocalyptic number.

It is an amenable number.

72022166510660 is an abundant number, since it is smaller than the sum of its proper divisors (79224383161768).

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

72022166510660 is a wasteful number, since it uses less digits than its factorization.

72022166510660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601108325542 (or 3601108325540 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 72022166510660 in words is "seventy-two trillion, twenty-two billion, one hundred sixty-six million, five hundred ten thousand, six hundred sixty".