166925930 has 8 divisors (see below), whose sum is σ = 300466692. Its totient is φ = 66770368.

The previous prime is 166925929. The next prime is 166925953. The reversal of 166925930 is 39529661.

It can be written as a sum of positive squares in 2 ways, for example, as 157678249 + 9247681 = 12557^2 + 3041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×166925930² = 55728532212729800, which contains 22 as substring.

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, 8346287 + ... + 8346306.

Almost surely, 2^166925930 is an apocalyptic number.

166925930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166925930 is a deficient number, since it is larger than the sum of its proper divisors (133540762).

166925930 is a wasteful number, since it uses less digits than its factorization.

166925930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16692600.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 166925930 is about 12919.9818111327. The cubic root of 166925930 is about 550.6064165337.

It can be divided in two parts, 16692 and 5930, that added together give a palindrome (22622).

The spelling of 166925930 in words is "one hundred sixty-six million, nine hundred twenty-five thousand, nine hundred thirty".