166197339 has 40 divisors (see below), whose sum is σ = 309543168. Its totient is φ = 86333040.

The previous prime is 166197337. The next prime is 166197413. The reversal of 166197339 is 933791661.

It is not a de Polignac number, because 166197339 - 2¹ = 166197337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166197294 and 166197303.

It is not an unprimeable number, because it can be changed into a prime (166197337) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7087 + ... + 19560.

Almost surely, 2^166197339 is an apocalyptic number.

166197339 is a deficient number, since it is larger than the sum of its proper divisors (143345829).

166197339 is a wasteful number, since it uses less digits than its factorization.

166197339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26677 (or 26668 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 166197339 is about 12891.7546904989. The cubic root of 166197339 is about 549.8041605784.

The spelling of 166197339 in words is "one hundred sixty-six million, one hundred ninety-seven thousand, three hundred thirty-nine".