5644454164 has 12 divisors (see below), whose sum is σ = 9883155744. Its totient is φ = 2820695384.

The previous prime is 5644454161. The next prime is 5644454213. The reversal of 5644454164 is 4614544465.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5644454164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5644454161) 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, 374614 + ... + 389389.

It is an arithmetic number, because the mean of its divisors is an integer number (823596312).

Almost surely, 2^5644454164 is an apocalyptic number.

It is an amenable number.

5644454164 is a deficient number, since it is larger than the sum of its proper divisors (4238701580).

5644454164 is a wasteful number, since it uses less digits than its factorization.

5644454164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765854 (or 765852 counting only the distinct ones).

The product of its digits is 921600, while the sum is 43.

The square root of 5644454164 is about 75129.5824825348. The cubic root of 5644454164 is about 1780.4945564312.

The spelling of 5644454164 in words is "five billion, six hundred forty-four million, four hundred fifty-four thousand, one hundred sixty-four".