6653665524 has 96 divisors (see below), whose sum is σ = 17252645760. Its totient is φ = 1978790400.

The previous prime is 6653665511. The next prime is 6653665541. The reversal of 6653665524 is 4255663566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6223662 + ... + 6224730.

It is an arithmetic number, because the mean of its divisors is an integer number (179715060).

Almost surely, 2^6653665524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6653665524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8626322880).

6653665524 is an abundant number, since it is smaller than the sum of its proper divisors (10598980236).

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

6653665524 is a wasteful number, since it uses less digits than its factorization.

6653665524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921 (or 1919 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 48.

The square root of 6653665524 is about 81570.0038249355. The cubic root of 6653665524 is about 1880.8478072174.

The spelling of 6653665524 in words is "six billion, six hundred fifty-three million, six hundred sixty-five thousand, five hundred twenty-four".