166322980 has 24 divisors (see below), whose sum is σ = 350328888. Its totient is φ = 66329088.

The previous prime is 166322977. The next prime is 166322983. The reversal of 166322980 is 89223661.

166322980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (166322977) and next prime (166322983).

It can be written as a sum of positive squares in 4 ways, for example, as 24760576 + 141562404 = 4976^2 + 11898^2 .

It is not an unprimeable number, because it can be changed into a prime (166322983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5599 + ... + 19078.

It is an arithmetic number, because the mean of its divisors is an integer number (14597037).

Almost surely, 2^166322980 is an apocalyptic number.

166322980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166322980 is an abundant number, since it is smaller than the sum of its proper divisors (184005908).

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

166322980 is a wasteful number, since it uses less digits than its factorization.

166322980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25023 (or 25021 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 166322980 is about 12896.6266907281. The cubic root of 166322980 is about 549.9426717106.

The spelling of 166322980 in words is "one hundred sixty-six million, three hundred twenty-two thousand, nine hundred eighty".