3644403606164 has 12 divisors (see below), whose sum is σ = 6406305892224. Its totient is φ = 1814030494104.

The previous prime is 3644403606161. The next prime is 3644403606287. The reversal of 3644403606164 is 4616063044463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644403606161) 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, 2042826242 + ... + 2042828025.

It is an arithmetic number, because the mean of its divisors is an integer number (533858824352).

Almost surely, 2^{3644403606164} is an apocalyptic number.

It is an amenable number.

3644403606164 is a deficient number, since it is larger than the sum of its proper divisors (2761902286060).

3644403606164 is a wasteful number, since it uses less digits than its factorization.

3644403606164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085654494 (or 4085654492 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 47.

The spelling of 3644403606164 in words is "three trillion, six hundred forty-four billion, four hundred three million, six hundred six thousand, one hundred sixty-four".