165663332460620 has 48 divisors (see below), whose sum is σ = 354872683236288. Its totient is φ = 64943712610560.

The previous prime is 165663332460581. The next prime is 165663332460673. The reversal of 165663332460620 is 26064233366561.

165663332460620 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 244769672 + ... + 245445551.

It is an arithmetic number, because the mean of its divisors is an integer number (7393180900756).

Almost surely, 2^{165663332460620} is an apocalyptic number.

165663332460620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165663332460620 is an abundant number, since it is smaller than the sum of its proper divisors (189209350775668).

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

165663332460620 is a wasteful number, since it uses less digits than its factorization.

165663332460620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490215570 (or 490215568 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 53.

The spelling of 165663332460620 in words is "one hundred sixty-five trillion, six hundred sixty-three billion, three hundred thirty-two million, four hundred sixty thousand, six hundred twenty".