166478560 has 48 divisors (see below), whose sum is σ = 406879200. Its totient is φ = 64293376.

The previous prime is 166478549. The next prime is 166478621. The reversal of 166478560 is 65874661.

It is a happy number.

It is a super-2 number, since 2×166478560² = 55430221879347200, which contains 22 as substring.

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, 13300 + ... + 22579.

It is an arithmetic number, because the mean of its divisors is an integer number (8476650).

Almost surely, 2^166478560 is an apocalyptic number.

166478560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166478560 is an abundant number, since it is smaller than the sum of its proper divisors (240400640).

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

166478560 is a wasteful number, since it uses less digits than its factorization.

166478560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35923 (or 35915 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 166478560 is about 12902.6570906926. The cubic root of 166478560 is about 550.1140920336.

The spelling of 166478560 in words is "one hundred sixty-six million, four hundred seventy-eight thousand, five hundred sixty".