166372992 has 96 divisors (see below), whose sum is σ = 482664000. Its totient is φ = 55005696.

The previous prime is 166372981. The next prime is 166373017. The reversal of 166372992 is 299273661.

It is a happy number.

166372992 is a `hidden beast` number, since 1 + 6 + 637 + 2 + 9 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159609 + ... + 160647.

It is an arithmetic number, because the mean of its divisors is an integer number (5027750).

Almost surely, 2^166372992 is an apocalyptic number.

166372992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166372992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241332000).

166372992 is an abundant number, since it is smaller than the sum of its proper divisors (316291008).

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

166372992 is a wasteful number, since it uses less digits than its factorization.

166372992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1183 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 166372992 is about 12898.5655016362. The cubic root of 166372992 is about 549.9977873189.

The spelling of 166372992 in words is "one hundred sixty-six million, three hundred seventy-two thousand, nine hundred ninety-two".