6596638464 has 216 divisors, whose sum is σ = 19780810000. Its totient is φ = 1939931136.

The previous prime is 6596638453. The next prime is 6596638483. The reversal of 6596638464 is 4648366956.

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, 5280912 + ... + 5282160.

Almost surely, 2^6596638464 is an apocalyptic number.

6596638464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6596638464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9890405000).

6596638464 is an abundant number, since it is smaller than the sum of its proper divisors (13184171536).

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

6596638464 is a wasteful number, since it uses less digits than its factorization.

6596638464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327 (or 1290 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 57.

The square root of 6596638464 is about 81219.6925874507. The cubic root of 6596638464 is about 1875.4589420205.

The spelling of 6596638464 in words is "six billion, five hundred ninety-six million, six hundred thirty-eight thousand, four hundred sixty-four".