165291296672 has 48 divisors (see below), whose sum is σ = 340645906944. Its totient is φ = 78853152000.

The previous prime is 165291296657. The next prime is 165291296707. The reversal of 165291296672 is 276692192561.

It is a super-2 number, since 2×165291296672² (a number of 23 digits) contains 22 as substring.

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, 1102979 + ... + 1243842.

It is an arithmetic number, because the mean of its divisors is an integer number (7096789728).

Almost surely, 2^165291296672 is an apocalyptic number.

It is an amenable number.

165291296672 is an abundant number, since it is smaller than the sum of its proper divisors (175354610272).

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

165291296672 is a wasteful number, since it uses less digits than its factorization.

165291296672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346933 (or 2346925 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 56.

The spelling of 165291296672 in words is "one hundred sixty-five billion, two hundred ninety-one million, two hundred ninety-six thousand, six hundred seventy-two".