166600772 has 12 divisors (see below), whose sum is σ = 313978476. Its totient is φ = 76892640.

The previous prime is 166600757. The next prime is 166600781. The reversal of 166600772 is 277006661.

It can be written as a sum of positive squares in 2 ways, for example, as 9449476 + 157151296 = 3074^2 + 12536^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1601879 + ... + 1601982.

It is an arithmetic number, because the mean of its divisors is an integer number (26164873).

Almost surely, 2^166600772 is an apocalyptic number.

It is an amenable number.

166600772 is a deficient number, since it is larger than the sum of its proper divisors (147377704).

166600772 is a wasteful number, since it uses less digits than its factorization.

166600772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203878 (or 3203876 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 166600772 is about 12907.3921455885. The cubic root of 166600772 is about 550.2486721236.

The spelling of 166600772 in words is "one hundred sixty-six million, six hundred thousand, seven hundred seventy-two".