165513075475 has 12 divisors (see below), whose sum is σ = 223894051560. Its totient is φ = 120373145600.

The previous prime is 165513075389. The next prime is 165513075509. The reversal of 165513075475 is 574570315561.

It is a de Polignac number, because none of the positive numbers 2^k-165513075475 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300932590 + ... + 300933139.

It is an arithmetic number, because the mean of its divisors is an integer number (18657837630).

Almost surely, 2^165513075475 is an apocalyptic number.

165513075475 is a deficient number, since it is larger than the sum of its proper divisors (58380976085).

165513075475 is a wasteful number, since it uses less digits than its factorization.

165513075475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601865750 (or 601865745 counting only the distinct ones).

The product of its (nonzero) digits is 2205000, while the sum is 49.

The spelling of 165513075475 in words is "one hundred sixty-five billion, five hundred thirteen million, seventy-five thousand, four hundred seventy-five".