164322666 has 24 divisors (see below), whose sum is σ = 358097220. Its totient is φ = 54456576.

The previous prime is 164322643. The next prime is 164322673. The reversal of 164322666 is 666223461.

It can be written as a sum of positive squares in 2 ways, for example, as 162027441 + 2295225 = 12729^2 + 1515^2 .

It is a super-2 number, since 2×164322666² = 54003877122695112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164322666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23271 + ... + 29498.

Almost surely, 2^164322666 is an apocalyptic number.

164322666 is an abundant number, since it is smaller than the sum of its proper divisors (193774554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164322666 is a wasteful number, since it uses less digits than its factorization.

164322666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52950 (or 52947 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 164322666 is about 12818.8402751575. The cubic root of 164322666 is about 547.7291115917.

The spelling of 164322666 in words is "one hundred sixty-four million, three hundred twenty-two thousand, six hundred sixty-six".