64506130646556 has 48 divisors (see below), whose sum is σ = 153355214240928. Its totient is φ = 21096204729600.

The previous prime is 64506130646527. The next prime is 64506130646569. The reversal of 64506130646556 is 65564603160546.

It is a super-2 number, since 2×64506130646556² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64506130646496 and 64506130646505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145002786 + ... + 145446966.

It is an arithmetic number, because the mean of its divisors is an integer number (3194900296686).

Almost surely, 2^{64506130646556} is an apocalyptic number.

It is an amenable number.

64506130646556 is an abundant number, since it is smaller than the sum of its proper divisors (88849083594372).

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

64506130646556 is a wasteful number, since it uses less digits than its factorization.

64506130646556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672582 (or 672580 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 57.

The spelling of 64506130646556 in words is "sixty-four trillion, five hundred six billion, one hundred thirty million, six hundred forty-six thousand, five hundred fifty-six".