166274272 has 24 divisors (see below), whose sum is σ = 332904600. Its totient is φ = 81727104.

The previous prime is 166274257. The next prime is 166274281. The reversal of 166274272 is 272472661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42147 + ... + 45922.

It is an arithmetic number, because the mean of its divisors is an integer number (13871025).

Almost surely, 2^166274272 is an apocalyptic number.

It is an amenable number.

166274272 is an abundant number, since it is smaller than the sum of its proper divisors (166630328).

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

166274272 is an equidigital number, since it uses as much as digits as its factorization.

166274272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88138 (or 88130 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 166274272 is about 12894.7381516648. The cubic root of 166274272 is about 549.8889825513. Note that the first 3 decimals are identical.

The spelling of 166274272 in words is "one hundred sixty-six million, two hundred seventy-four thousand, two hundred seventy-two".