5645544063 has 16 divisors (see below), whose sum is σ = 7568257536. Its totient is φ = 3743288640.

The previous prime is 5645544053. The next prime is 5645544103. The reversal of 5645544063 is 3604455465.

It is a de Polignac number, because none of the positive numbers 2^k-5645544063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645544053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1512906 + ... + 1516632.

It is an arithmetic number, because the mean of its divisors is an integer number (473016096).

Almost surely, 2^5645544063 is an apocalyptic number.

5645544063 is a deficient number, since it is larger than the sum of its proper divisors (1922713473).

5645544063 is a wasteful number, since it uses less digits than its factorization.

5645544063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6334.

The product of its (nonzero) digits is 864000, while the sum is 42.

The square root of 5645544063 is about 75136.8355934691. The cubic root of 5645544063 is about 1780.6091488134.

The spelling of 5645544063 in words is "five billion, six hundred forty-five million, five hundred forty-four thousand, sixty-three".