165045125412501 has 16 divisors (see below), whose sum is σ = 220695616243008. Its totient is φ = 109712362745600.

The previous prime is 165045125412493. The next prime is 165045125412533. The reversal of 165045125412501 is 105214521540561.

It is a cyclic number.

It is not a de Polignac number, because 165045125412501 - 2³ = 165045125412493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165045125412581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242860141 + ... + 243538781.

It is an arithmetic number, because the mean of its divisors is an integer number (13793476015188).

Almost surely, 2^{165045125412501} is an apocalyptic number.

It is an amenable number.

165045125412501 is a deficient number, since it is larger than the sum of its proper divisors (55650490830507).

165045125412501 is a wasteful number, since it uses less digits than its factorization.

165045125412501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912612.

The product of its (nonzero) digits is 240000, while the sum is 42.

The spelling of 165045125412501 in words is "one hundred sixty-five trillion, forty-five billion, one hundred twenty-five million, four hundred twelve thousand, five hundred one".