6455694336 has 264 divisors, whose sum is σ = 21562279200. Its totient is φ = 1702084608.

The previous prime is 6455694313. The next prime is 6455694367. The reversal of 6455694336 is 6334965546.

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, 1955215 + ... + 1958513.

It is an arithmetic number, because the mean of its divisors is an integer number (81675300).

Almost surely, 2^6455694336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6455694336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10781139600).

6455694336 is an abundant number, since it is smaller than the sum of its proper divisors (15106584864).

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

6455694336 is a wasteful number, since it uses less digits than its factorization.

6455694336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349 (or 3324 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 51.

The square root of 6455694336 is about 80347.3355874356. The cubic root of 6455694336 is about 1862.0056155257.

The spelling of 6455694336 in words is "six billion, four hundred fifty-five million, six hundred ninety-four thousand, three hundred thirty-six".