166679259761 has 48 divisors (see below), whose sum is σ = 203921587584. Its totient is φ = 133424782848.

The previous prime is 166679259739. The next prime is 166679259829. The reversal of 166679259761 is 167952976661.

It is not a de Polignac number, because 166679259761 - 2¹⁴ = 166679243377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166679259731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56252066 + ... + 56255028.

It is an arithmetic number, because the mean of its divisors is an integer number (4248366408).

Almost surely, 2^166679259761 is an apocalyptic number.

It is an amenable number.

166679259761 is a deficient number, since it is larger than the sum of its proper divisors (37242327823).

166679259761 is a wasteful number, since it uses less digits than its factorization.

166679259761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318 (or 3299 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 65.

The spelling of 166679259761 in words is "one hundred sixty-six billion, six hundred seventy-nine million, two hundred fifty-nine thousand, seven hundred sixty-one".