166194080 has 48 divisors (see below), whose sum is σ = 422841384. Its totient is φ = 61363200.

The previous prime is 166194059. The next prime is 166194109. The reversal of 166194080 is 80491661.

It can be written as a sum of positive squares in 4 ways, for example, as 89946256 + 76247824 = 9484^2 + 8732^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 166194080.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37871 + ... + 42030.

Almost surely, 2^166194080 is an apocalyptic number.

166194080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166194080 is an abundant number, since it is smaller than the sum of its proper divisors (256647304).

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

166194080 is a wasteful number, since it uses less digits than its factorization.

166194080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79929 (or 79921 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 166194080 is about 12891.6282912594. The cubic root of 166194080 is about 549.8005668116.

The spelling of 166194080 in words is "one hundred sixty-six million, one hundred ninety-four thousand, eighty".