6626690880 has 56 divisors (see below), whose sum is σ = 21039746592. Its totient is φ = 1767117312.

The previous prime is 6626690879. The next prime is 6626690893. The reversal of 6626690880 is 880966266.

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, 3450442 + ... + 3452361.

Almost surely, 2^6626690880 is an apocalyptic number.

6626690880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6626690880 is an abundant number, since it is smaller than the sum of its proper divisors (14413055712).

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

6626690880 is a wasteful number, since it uses less digits than its factorization.

6626690880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6902823 (or 6902813 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 6626690880 is about 81404.4893110939. The cubic root of 6626690880 is about 1878.3026478824.

The spelling of 6626690880 in words is "six billion, six hundred twenty-six million, six hundred ninety thousand, eight hundred eighty".