166456602 has 24 divisors (see below), whose sum is σ = 388399284. Its totient is φ = 51217344.

The previous prime is 166456579. The next prime is 166456613. The reversal of 166456602 is 206654661.

It is a happy number.

166456602 is a `hidden beast` number, since 1 + 6 + 6 + 45 + 6 + 602 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 123409881 + 43046721 = 11109^2 + 6561^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355443 + ... + 355910.

Almost surely, 2^166456602 is an apocalyptic number.

166456602 is an abundant number, since it is smaller than the sum of its proper divisors (221942682).

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

166456602 is a wasteful number, since it uses less digits than its factorization.

166456602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711374 (or 711371 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 166456602 is about 12901.8061526284. The cubic root of 166456602 is about 550.0899048623.

The spelling of 166456602 in words is "one hundred sixty-six million, four hundred fifty-six thousand, six hundred two".