165045998612 has 48 divisors (see below), whose sum is σ = 317018826432. Its totient is φ = 74562554880.

The previous prime is 165045998597. The next prime is 165045998617. The reversal of 165045998612 is 216899540561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165045998617) 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, 4751018 + ... + 4785630.

It is an arithmetic number, because the mean of its divisors is an integer number (6604558884).

Almost surely, 2^165045998612 is an apocalyptic number.

It is an amenable number.

165045998612 is a deficient number, since it is larger than the sum of its proper divisors (151972827820).

165045998612 is a wasteful number, since it uses less digits than its factorization.

165045998612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35288 (or 35286 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 56.

The spelling of 165045998612 in words is "one hundred sixty-five billion, forty-five million, nine hundred ninety-eight thousand, six hundred twelve".