64750656 has 56 divisors (see below), whose sum is σ = 172053504. Its totient is φ = 21491200.

The previous prime is 64750639. The next prime is 64750657. The reversal of 64750656 is 65605746.

It is not an unprimeable number, because it can be changed into a prime (64750657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55681 + ... + 56831.

It is an arithmetic number, because the mean of its divisors is an integer number (3072384).

Almost surely, 2^64750656 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 64750656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86026752).

64750656 is an abundant number, since it is smaller than the sum of its proper divisors (107302848).

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

64750656 is a wasteful number, since it uses less digits than its factorization.

64750656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459 (or 1449 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 64750656 is about 8046.7792314689. The cubic root of 64750656 is about 401.5577920012.

The spelling of 64750656 in words is "sixty-four million, seven hundred fifty thousand, six hundred fifty-six".