166885518704 has 10 divisors (see below), whose sum is σ = 323340692520. Its totient is φ = 83442759344.

The previous prime is 166885518649. The next prime is 166885518727. The reversal of 166885518704 is 407815588661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5215172444 + ... + 5215172475.

It is an arithmetic number, because the mean of its divisors is an integer number (32334069252).

Almost surely, 2^166885518704 is an apocalyptic number.

It is an amenable number.

166885518704 is a deficient number, since it is larger than the sum of its proper divisors (156455173816).

166885518704 is a wasteful number, since it uses less digits than its factorization.

166885518704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10430344927 (or 10430344921 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 59.

The spelling of 166885518704 in words is "one hundred sixty-six billion, eight hundred eighty-five million, five hundred eighteen thousand, seven hundred four".