6625661100 has 36 divisors (see below), whose sum is σ = 19170246984. Its totient is φ = 1766842880.

The previous prime is 6625661099. The next prime is 6625661123. The reversal of 6625661100 is 11665266.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11042469 + ... + 11043068.

Almost surely, 2^6625661100 is an apocalyptic number.

6625661100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6625661100 is an abundant number, since it is smaller than the sum of its proper divisors (12544585884).

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

6625661100 is a wasteful number, since it uses less digits than its factorization.

6625661100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22085554 (or 22085547 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 6625661100 is about 81398.1639842079. The cubic root of 6625661100 is about 1878.2053474983.

The spelling of 6625661100 in words is "six billion, six hundred twenty-five million, six hundred sixty-one thousand, one hundred".