165044255562345 has 16 divisors (see below), whose sum is σ = 264076097542272. Its totient is φ = 88021840085760.

The previous prime is 165044255562337. The next prime is 165044255562377. The reversal of 165044255562345 is 543265552440561.

It is a happy number.

165044255562345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165044255562345 - 2³ = 165044255562337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109405936 + ... + 110904225.

It is an arithmetic number, because the mean of its divisors is an integer number (16504756096392).

Almost surely, 2^{165044255562345} is an apocalyptic number.

165044255562345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165044255562345 is a deficient number, since it is larger than the sum of its proper divisors (99031841979927).

165044255562345 is a wasteful number, since it uses less digits than its factorization.

165044255562345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220360112.

The product of its (nonzero) digits is 86400000, while the sum is 57.

The spelling of 165044255562345 in words is "one hundred sixty-five trillion, forty-four billion, two hundred fifty-five million, five hundred sixty-two thousand, three hundred forty-five".