166828624 has 20 divisors (see below), whose sum is σ = 323731636. Its totient is φ = 83284992.

The previous prime is 166828609. The next prime is 166828661. The reversal of 166828624 is 426828661.

It can be written as a sum of positive squares in 2 ways, for example, as 26832400 + 139996224 = 5180^2 + 11832^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3022 + ... + 18514.

Almost surely, 2^166828624 is an apocalyptic number.

It is an amenable number.

166828624 is a deficient number, since it is larger than the sum of its proper divisors (156903012).

166828624 is a wasteful number, since it uses less digits than its factorization.

166828624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16174 (or 16168 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 166828624 is about 12916.2155448103. The cubic root of 166828624 is about 550.4994075509.

The spelling of 166828624 in words is "one hundred sixty-six million, eight hundred twenty-eight thousand, six hundred twenty-four".