166668518337 has 8 divisors (see below), whose sum is σ = 231886634304. Its totient is φ = 106281373968.

The previous prime is 166668518287. The next prime is 166668518411. The reversal of 166668518337 is 733815866661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166668518337 - 2⁷ = 166668518209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166668513337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1207742818 + ... + 1207742955.

It is an arithmetic number, because the mean of its divisors is an integer number (28985829288).

Almost surely, 2^166668518337 is an apocalyptic number.

It is an amenable number.

166668518337 is a deficient number, since it is larger than the sum of its proper divisors (65218115967).

166668518337 is a wasteful number, since it uses less digits than its factorization.

166668518337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415485799.

The product of its digits is 26127360, while the sum is 60.

The spelling of 166668518337 in words is "one hundred sixty-six billion, six hundred sixty-eight million, five hundred eighteen thousand, three hundred thirty-seven".