5645534656 has 28 divisors (see below), whose sum is σ = 11344676320. Its totient is φ = 2787033600.

The previous prime is 5645534627. The next prime is 5645534663. The reversal of 5645534656 is 6564355465.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553245 + ... + 563356.

Almost surely, 2^5645534656 is an apocalyptic number.

It is an amenable number.

5645534656 is an abundant number, since it is smaller than the sum of its proper divisors (5699141664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5645534656 is a wasteful number, since it uses less digits than its factorization.

5645534656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116692 (or 1116682 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 49.

The square root of 5645534656 is about 75136.7729943202. The cubic root of 5645534656 is about 1780.6081598211.

The spelling of 5645534656 in words is "five billion, six hundred forty-five million, five hundred thirty-four thousand, six hundred fifty-six".