64556050563684 has 135 divisors (see below), whose sum is σ = 169379644278537. Its totient is φ = 21440248994592.

The previous prime is 64556050563583. The next prime is 64556050563743. The reversal of 64556050563684 is 48636505065546.

The square root of 64556050563684 is 8034678.

It is a perfect power (a square), and thus also a powerful number.

64556050563684 is a `hidden beast` number, since 6 + 4 + 5 + 5 + 6 + 0 + 5 + 0 + 563 + 68 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 47383646082084 + 17172404481600 = 6883578^2 + 4143960^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 50473846557 + ... + 50473847835.

Almost surely, 2^{64556050563684} is an apocalyptic number.

64556050563684 is the 8034678-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64556050563684

64556050563684 is an abundant number, since it is smaller than the sum of its proper divisors (104823593714853).

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

64556050563684 is an frugal number, since it uses more digits than its factorization.

64556050563684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272 (or 1633 counting only the distinct ones).

The product of its (nonzero) digits is 311040000, while the sum is 63.

The spelling of 64556050563684 in words is "sixty-four trillion, five hundred fifty-six billion, fifty million, five hundred sixty-three thousand, six hundred eighty-four".