166690104159 has 16 divisors (see below), whose sum is σ = 231954158592. Its totient is φ = 106277955168.

The previous prime is 166690104157. The next prime is 166690104169. The reversal of 166690104159 is 951401096661.

It is not a de Polignac number, because 166690104159 - 2¹ = 166690104157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166690104157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241677 + ... + 625929.

It is an arithmetic number, because the mean of its divisors is an integer number (14497134912).

Almost surely, 2^166690104159 is an apocalyptic number.

166690104159 is a deficient number, since it is larger than the sum of its proper divisors (65264054433).

166690104159 is a wasteful number, since it uses less digits than its factorization.

166690104159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390566.

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 166690104159 in words is "one hundred sixty-six billion, six hundred ninety million, one hundred four thousand, one hundred fifty-nine".