166922764 has 6 divisors (see below), whose sum is σ = 292114844. Its totient is φ = 83461380.

The previous prime is 166922761. The next prime is 166922773. The reversal of 166922764 is 467229661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 166922764.

It is not an unprimeable number, because it can be changed into a prime (166922761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20865342 + ... + 20865349.

Almost surely, 2^166922764 is an apocalyptic number.

It is an amenable number.

166922764 is a deficient number, since it is larger than the sum of its proper divisors (125192080).

166922764 is a wasteful number, since it uses less digits than its factorization.

166922764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41730695 (or 41730693 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 166922764 is about 12919.8592871594. The cubic root of 166922764 is about 550.6029354869.

The spelling of 166922764 in words is "one hundred sixty-six million, nine hundred twenty-two thousand, seven hundred sixty-four".