166734564 has 48 divisors (see below), whose sum is σ = 399759360. Its totient is φ = 54059040.

The previous prime is 166734563. The next prime is 166734587. The reversal of 166734564 is 465437661.

It is not an unprimeable number, because it can be changed into a prime (166734563) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 159957 + ... + 160995.

It is an arithmetic number, because the mean of its divisors is an integer number (8328320).

Almost surely, 2^166734564 is an apocalyptic number.

It is an amenable number.

166734564 is an abundant number, since it is smaller than the sum of its proper divisors (233024796).

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

166734564 is a wasteful number, since it uses less digits than its factorization.

166734564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400 (or 1398 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 166734564 is about 12912.5738720055. The cubic root of 166734564 is about 550.3959286884.

The spelling of 166734564 in words is "one hundred sixty-six million, seven hundred thirty-four thousand, five hundred sixty-four".