64350656 has 28 divisors (see below), whose sum is σ = 128902968. Its totient is φ = 31871232.

The previous prime is 64350653. The next prime is 64350667. The reversal of 64350656 is 65605346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64350653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2150 + ... + 11546.

Almost surely, 2^64350656 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 64350656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64451484).

64350656 is an abundant number, since it is smaller than the sum of its proper divisors (64552312).

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

64350656 is a wasteful number, since it uses less digits than its factorization.

64350656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9516 (or 9506 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 64350656 is about 8021.8860625167. The cubic root of 64350656 is about 400.7292031823.

The spelling of 64350656 in words is "sixty-four million, three hundred fifty thousand, six hundred fifty-six".