166668518288 has 10 divisors (see below), whose sum is σ = 322920254214. Its totient is φ = 83334259136.

The previous prime is 166668518287. The next prime is 166668518411. The reversal of 166668518288 is 882815866661.

166668518288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 133335983104 + 33332535184 = 365152^2 + 182572^2 .

It is not an unprimeable number, because it can be changed into a prime (166668518287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5208391181 + ... + 5208391212.

Almost surely, 2^166668518288 is an apocalyptic number.

It is an amenable number.

166668518288 is a deficient number, since it is larger than the sum of its proper divisors (156251735926).

166668518288 is a wasteful number, since it uses less digits than its factorization.

166668518288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10416782401 (or 10416782395 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 65.

The spelling of 166668518288 in words is "one hundred sixty-six billion, six hundred sixty-eight million, five hundred eighteen thousand, two hundred eighty-eight".