166679499 has 16 divisors (see below), whose sum is σ = 255991808. Its totient is φ = 94493952.

The previous prime is 166679449. The next prime is 166679503. The reversal of 166679499 is 994976661.

It is not a de Polignac number, because 166679499 - 2⁸ = 166679243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166679449) 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, 28582 + ... + 33915.

It is an arithmetic number, because the mean of its divisors is an integer number (15999488).

Almost surely, 2^166679499 is an apocalyptic number.

166679499 is a deficient number, since it is larger than the sum of its proper divisors (89312309).

166679499 is a wasteful number, since it uses less digits than its factorization.

166679499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62634.

The product of its digits is 4408992, while the sum is 57.

The square root of 166679499 is about 12910.4414719250. The cubic root of 166679499 is about 550.3353315970.

The spelling of 166679499 in words is "one hundred sixty-six million, six hundred seventy-nine thousand, four hundred ninety-nine".