166570992 has 300 divisors, whose sum is σ = 583265496. Its totient is φ = 45722880.

The previous prime is 166570951. The next prime is 166571017. The reversal of 166570992 is 299075661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2730642 + ... + 2730702.

Almost surely, 2^166570992 is an apocalyptic number.

166570992 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 166570992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291632748).

166570992 is an abundant number, since it is smaller than the sum of its proper divisors (416694504).

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

166570992 is a wasteful number, since it uses less digits than its factorization.

166570992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 166570992 is about 12906.2384915203. The cubic root of 166570992 is about 550.2158843966.

The spelling of 166570992 in words is "one hundred sixty-six million, five hundred seventy thousand, nine hundred ninety-two".