164564799 has 8 divisors (see below), whose sum is σ = 250765440. Its totient is φ = 94037016.

The previous prime is 164564779. The next prime is 164564801. The reversal of 164564799 is 997465461.

164564799 = 3422² + 3423² + ... + 3435².

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

It is not a de Polignac number, because 164564799 - 2⁵ = 164564767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164564749) 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, 3918189 + ... + 3918230.

It is an arithmetic number, because the mean of its divisors is an integer number (31345680).

Almost surely, 2^164564799 is an apocalyptic number.

164564799 is a deficient number, since it is larger than the sum of its proper divisors (86200641).

164564799 is an equidigital number, since it uses as much as digits as its factorization.

164564799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836429.

The product of its digits is 1632960, while the sum is 51.

The square root of 164564799 is about 12828.2812176846. The cubic root of 164564799 is about 547.9980097873.

The spelling of 164564799 in words is "one hundred sixty-four million, five hundred sixty-four thousand, seven hundred ninety-nine".