166402922 has 12 divisors (see below), whose sum is σ = 290356290. Its totient is φ = 71315496.

The previous prime is 166402921. The next prime is 166402933. The reversal of 166402922 is 229204661.

It can be written as a sum of positive squares in only one way, i.e., 146143921 + 20259001 = 12089^2 + 4501^2 .

It is not an unprimeable number, because it can be changed into a prime (166402921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 848897 + ... + 849092.

Almost surely, 2^166402922 is an apocalyptic number.

166402922 is a deficient number, since it is larger than the sum of its proper divisors (123953368).

166402922 is a wasteful number, since it uses less digits than its factorization.

166402922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698005 (or 1697998 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 166402922 is about 12899.7256559975. The cubic root of 166402922 is about 550.0307663230.

The spelling of 166402922 in words is "one hundred sixty-six million, four hundred two thousand, nine hundred twenty-two".