166939698104 has 32 divisors (see below), whose sum is σ = 316441856640. Its totient is φ = 82557208800.

The previous prime is 166939698091. The next prime is 166939698127. The reversal of 166939698104 is 401896939661.

It is a super-2 number, since 2×166939698104² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543359 + ... + 793169.

It is an arithmetic number, because the mean of its divisors is an integer number (9888808020).

Almost surely, 2^166939698104 is an apocalyptic number.

It is an amenable number.

166939698104 is a deficient number, since it is larger than the sum of its proper divisors (149502158536).

166939698104 is a wasteful number, since it uses less digits than its factorization.

166939698104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250731 (or 250727 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 62.

The spelling of 166939698104 in words is "one hundred sixty-six billion, nine hundred thirty-nine million, six hundred ninety-eight thousand, one hundred four".