6655100772 has 48 divisors (see below), whose sum is σ = 16667284032. Its totient is φ = 2059269120.

The previous prime is 6655100741. The next prime is 6655100773. The reversal of 6655100772 is 2770015566.

It is a self number, because there is not a number n which added to its sum of digits gives 6655100772.

It is not an unprimeable number, because it can be changed into a prime (6655100773) 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, 208554 + ... + 238337.

It is an arithmetic number, because the mean of its divisors is an integer number (347235084).

Almost surely, 2^6655100772 is an apocalyptic number.

It is an amenable number.

6655100772 is an abundant number, since it is smaller than the sum of its proper divisors (10012183260).

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

6655100772 is a wasteful number, since it uses less digits than its factorization.

6655100772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446988 (or 446986 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 6655100772 is about 81578.8009963373. The cubic root of 6655100772 is about 1880.9830353844.

The spelling of 6655100772 in words is "six billion, six hundred fifty-five million, one hundred thousand, seven hundred seventy-two".