6553566544 has 40 divisors (see below), whose sum is σ = 14807633600. Its totient is φ = 2808669024.

The previous prime is 6553566517. The next prime is 6553566587. The reversal of 6553566544 is 4456653556.

It is a super-2 number, since 2×6553566544² = 85898468893272207872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591594 + ... + 602569.

It is an arithmetic number, because the mean of its divisors is an integer number (370190840).

Almost surely, 2^6553566544 is an apocalyptic number.

It is an amenable number.

6553566544 is an abundant number, since it is smaller than the sum of its proper divisors (8254067056).

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

6553566544 is a wasteful number, since it uses less digits than its factorization.

6553566544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194192 (or 1194172 counting only the distinct ones).

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

The square root of 6553566544 is about 80954.1014649659. The cubic root of 6553566544 is about 1871.3681680127.

The spelling of 6553566544 in words is "six billion, five hundred fifty-three million, five hundred sixty-six thousand, five hundred forty-four".