6656877552 has 120 divisors (see below), whose sum is σ = 18847793664. Its totient is φ = 2023387392.

The previous prime is 6656877541. The next prime is 6656877581. The reversal of 6656877552 is 2557786566.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 6656877492 and 6656877501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 668353 + ... + 678239.

Almost surely, 2^6656877552 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 6656877552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9423896832).

6656877552 is an abundant number, since it is smaller than the sum of its proper divisors (12190916112).

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

6656877552 is a wasteful number, since it uses less digits than its factorization.

6656877552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007 (or 9988 counting only the distinct ones).

The product of its digits is 21168000, while the sum is 57.

The square root of 6656877552 is about 81589.6902310580. The cubic root of 6656877552 is about 1881.1504155525.

The spelling of 6656877552 in words is "six billion, six hundred fifty-six million, eight hundred seventy-seven thousand, five hundred fifty-two".