166975626764 has 12 divisors (see below), whose sum is σ = 309396014424. Its totient is φ = 78576765504.

The previous prime is 166975626683. The next prime is 166975626767. The reversal of 166975626764 is 467626579661.

It is a super-2 number, since 2×166975626764² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166975626764.

It is not an unprimeable number, because it can be changed into a prime (166975626767) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1227761894 + ... + 1227762029.

It is an arithmetic number, because the mean of its divisors is an integer number (25783001202).

Almost surely, 2^166975626764 is an apocalyptic number.

It is an amenable number.

166975626764 is a deficient number, since it is larger than the sum of its proper divisors (142420387660).

166975626764 is a wasteful number, since it uses less digits than its factorization.

166975626764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455523944 (or 2455523942 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 65.

The spelling of 166975626764 in words is "one hundred sixty-six billion, nine hundred seventy-five million, six hundred twenty-six thousand, seven hundred sixty-four".