166963365724 has 6 divisors (see below), whose sum is σ = 292185890024. Its totient is φ = 83481682860.

The previous prime is 166963365721. The next prime is 166963365757. The reversal of 166963365724 is 427563369661.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166963365721) by changing a digit.

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 as a sum of consecutive naturals, namely, 20870420712 + ... + 20870420719.

Almost surely, 2^166963365724 is an apocalyptic number.

It is an amenable number.

166963365724 is a deficient number, since it is larger than the sum of its proper divisors (125222524300).

166963365724 is a wasteful number, since it uses less digits than its factorization.

166963365724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41740841435 (or 41740841433 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 58.

The spelling of 166963365724 in words is "one hundred sixty-six billion, nine hundred sixty-three million, three hundred sixty-five thousand, seven hundred twenty-four".