164044799 has 4 divisors (see below), whose sum is σ = 166734120. Its totient is φ = 161355480.

The previous prime is 164044723. The next prime is 164044817. The reversal of 164044799 is 997440461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997440461 = 19427 ⋅51343.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164044799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164044399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344569 + ... + 1344690.

It is an arithmetic number, because the mean of its divisors is an integer number (41683530).

Almost surely, 2^164044799 is an apocalyptic number.

164044799 is a deficient number, since it is larger than the sum of its proper divisors (2689321).

164044799 is an equidigital number, since it uses as much as digits as its factorization.

164044799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689320.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 164044799 is about 12807.9974625232. The cubic root of 164044799 is about 547.4202036843.

The spelling of 164044799 in words is "one hundred sixty-four million, forty-four thousand, seven hundred ninety-nine".