166922120 has 32 divisors (see below), whose sum is σ = 376173720. Its totient is φ = 66662400.

The previous prime is 166922117. The next prime is 166922137. The reversal of 166922120 is 21229661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 112487236 + 54434884 = 10606^2 + 7378^2 .

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 7 ways as a sum of consecutive naturals, for example, 25064 + ... + 31016.

Almost surely, 2^166922120 is an apocalyptic number.

166922120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166922120 is an abundant number, since it is smaller than the sum of its proper divisors (209251600).

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

166922120 is a wasteful number, since it uses less digits than its factorization.

166922120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6665 (or 6661 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 166922120 is about 12919.8343642633. The cubic root of 166922120 is about 550.6022273974.

The spelling of 166922120 in words is "one hundred sixty-six million, nine hundred twenty-two thousand, one hundred twenty".