165135036472 has 32 divisors (see below), whose sum is σ = 357836767200. Its totient is φ = 69976963584.

The previous prime is 165135036449. The next prime is 165135036503. The reversal of 165135036472 is 274630531561.

It is a congruent number.

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, 16561533 + ... + 16571500.

It is an arithmetic number, because the mean of its divisors is an integer number (11182398975).

Almost surely, 2^165135036472 is an apocalyptic number.

It is an amenable number.

165135036472 is an abundant number, since it is smaller than the sum of its proper divisors (192701730728).

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

165135036472 is a wasteful number, since it uses less digits than its factorization.

165135036472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33133135 (or 33133131 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 165135036472 in words is "one hundred sixty-five billion, one hundred thirty-five million, thirty-six thousand, four hundred seventy-two".