164904481444 has 12 divisors (see below), whose sum is σ = 288740464768. Its totient is φ = 82407205800.

The previous prime is 164904481433. The next prime is 164904481447. The reversal of 164904481444 is 444184409461.

It is not an unprimeable number, because it can be changed into a prime (164904481447) 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, 11250492 + ... + 11265139.

Almost surely, 2^164904481444 is an apocalyptic number.

It is an amenable number.

164904481444 is a deficient number, since it is larger than the sum of its proper divisors (123835983324).

164904481444 is a wasteful number, since it uses less digits than its factorization.

164904481444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22517466 (or 22517464 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 49.

The spelling of 164904481444 in words is "one hundred sixty-four billion, nine hundred four million, four hundred eighty-one thousand, four hundred forty-four".