166270864 has 20 divisors (see below), whose sum is σ = 336157056. Its totient is φ = 79520672.

The previous prime is 166270849. The next prime is 166270877. The reversal of 166270864 is 468072661.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225544 + ... + 226279.

Almost surely, 2^166270864 is an apocalyptic number.

It is an amenable number.

166270864 is an abundant number, since it is smaller than the sum of its proper divisors (169886192).

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

166270864 is a wasteful number, since it uses less digits than its factorization.

166270864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451854 (or 451848 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 166270864 is about 12894.6060040623. The cubic root of 166270864 is about 549.8852256373.

The spelling of 166270864 in words is "one hundred sixty-six million, two hundred seventy thousand, eight hundred sixty-four".