166792637930 has 32 divisors (see below), whose sum is σ = 302215487184. Its totient is φ = 66275329536.

The previous prime is 166792637911. The next prime is 166792637953. The reversal of 166792637930 is 39736297661.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 124505239609 + 42287398321 = 352853^2 + 205639^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 166792637930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7545374 + ... + 7567446.

Almost surely, 2^166792637930 is an apocalyptic number.

166792637930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166792637930 is a deficient number, since it is larger than the sum of its proper divisors (135422849254).

166792637930 is a wasteful number, since it uses less digits than its factorization.

166792637930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27050.

The product of its (nonzero) digits is 15431472, while the sum is 59.

The spelling of 166792637930 in words is "one hundred sixty-six billion, seven hundred ninety-two million, six hundred thirty-seven thousand, nine hundred thirty".