6623064688 has 40 divisors (see below), whose sum is σ = 13943313920. Its totient is φ = 3036035520.

The previous prime is 6623064677. The next prime is 6623064709. The reversal of 6623064688 is 8864603266.

It is a happy number.

It is a super-2 number, since 2×6623064688² = 87729971722865074688, which contains 22 as substring.

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, 341970 + ... + 360817.

It is an arithmetic number, because the mean of its divisors is an integer number (348582848).

Almost surely, 2^6623064688 is an apocalyptic number.

It is an amenable number.

6623064688 is an abundant number, since it is smaller than the sum of its proper divisors (7320249232).

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

6623064688 is a wasteful number, since it uses less digits than its factorization.

6623064688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702845 (or 702839 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 49.

The square root of 6623064688 is about 81382.2135850334. The cubic root of 6623064688 is about 1877.9599766607.

The spelling of 6623064688 in words is "six billion, six hundred twenty-three million, sixty-four thousand, six hundred eighty-eight".