166656964 has 12 divisors (see below), whose sum is σ = 298763388. Its totient is φ = 81296000.

The previous prime is 166656943. The next prime is 166656977. The reversal of 166656964 is 469656661.

It can be written as a sum of positive squares in 2 ways, for example, as 45832900 + 120824064 = 6770^2 + 10992^2 .

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, 507937 + ... + 508264.

It is an arithmetic number, because the mean of its divisors is an integer number (24896949).

Almost surely, 2^166656964 is an apocalyptic number.

It is an amenable number.

166656964 is a deficient number, since it is larger than the sum of its proper divisors (132106424).

166656964 is a wasteful number, since it uses less digits than its factorization.

166656964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016246 (or 1016244 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 49.

The square root of 166656964 is about 12909.5686992246. The cubic root of 166656964 is about 550.3105287754.

The spelling of 166656964 in words is "one hundred sixty-six million, six hundred fifty-six thousand, nine hundred sixty-four".