165610615161120 has 48 divisors (see below), whose sum is σ = 521673437759040. Its totient is φ = 44162830709504.

The previous prime is 165610615161119. The next prime is 165610615161179. The reversal of 165610615161120 is 21161516016561.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172511056980 + ... + 172511057939.

It is an arithmetic number, because the mean of its divisors is an integer number (10868196619980).

Almost surely, 2^{165610615161120} is an apocalyptic number.

165610615161120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165610615161120 is an abundant number, since it is smaller than the sum of its proper divisors (356062822597920).

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

165610615161120 is a wasteful number, since it uses less digits than its factorization.

165610615161120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345022114937 (or 345022114929 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 42.

The spelling of 165610615161120 in words is "one hundred sixty-five trillion, six hundred ten billion, six hundred fifteen million, one hundred sixty-one thousand, one hundred twenty".