166870992 has 40 divisors (see below), whose sum is σ = 436997824. Its totient is φ = 54860544.

The previous prime is 166870987. The next prime is 166870993. The reversal of 166870992 is 299078661.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166870993) 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, 20308 + ... + 27315.

Almost surely, 2^166870992 is an apocalyptic number.

166870992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166870992 is an abundant number, since it is smaller than the sum of its proper divisors (270126832).

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

166870992 is a wasteful number, since it uses less digits than its factorization.

166870992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47707 (or 47701 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 166870992 is about 12917.8555495872. The cubic root of 166870992 is about 550.5460054391.

The spelling of 166870992 in words is "one hundred sixty-six million, eight hundred seventy thousand, nine hundred ninety-two".