165306375224220 has 96 divisors (see below), whose sum is σ = 473829641429760. Its totient is φ = 43037666542080.

The previous prime is 165306375224129. The next prime is 165306375224231. The reversal of 165306375224220 is 22422573603561.

165306375224220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 165306375224220.

It is a congruent number.

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, 8159790 + ... + 19929749.

It is an arithmetic number, because the mean of its divisors is an integer number (4935725431560).

Almost surely, 2^{165306375224220} is an apocalyptic number.

165306375224220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165306375224220 is an abundant number, since it is smaller than the sum of its proper divisors (308523266205540).

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

165306375224220 is a wasteful number, since it uses less digits than its factorization.

165306375224220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28091875 (or 28091873 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 48.

The spelling of 165306375224220 in words is "one hundred sixty-five trillion, three hundred six billion, three hundred seventy-five million, two hundred twenty-four thousand, two hundred twenty".