165080172 has 18 divisors (see below), whose sum is σ = 385290948. Its totient is φ = 55011888.

The previous prime is 165080147. The next prime is 165080197. The reversal of 165080172 is 271080561.

It is an interprime number because it is at equal distance from previous prime (165080147) and next prime (165080197).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42654 + ... + 46362.

Almost surely, 2^165080172 is an apocalyptic number.

165080172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165080172 is an abundant number, since it is smaller than the sum of its proper divisors (220210776).

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

165080172 is an frugal number, since it uses more digits than its factorization.

165080172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7425 (or 3714 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 165080172 is about 12848.3528905459. The cubic root of 165080172 is about 548.5694747807.

The spelling of 165080172 in words is "one hundred sixty-five million, eighty thousand, one hundred seventy-two".