64055560464 has 405 divisors, whose sum is σ = 219672339159. Its totient is φ = 17372234880.

The previous prime is 64055560451. The next prime is 64055560519. The reversal of 64055560464 is 46406555046.

The square root of 64055560464 is 253092.

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

64055560464 is a `hidden beast` number, since 6 + 40 + 5 + 5 + 560 + 46 + 4 = 666.

It is a super-2 number, since 2×64055560464² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 488973679 + ... + 488973809.

Almost surely, 2^64055560464 is an apocalyptic number.

64055560464 is the 253092-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64055560464

64055560464 is an abundant number, since it is smaller than the sum of its proper divisors (155616778695).

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

64055560464 is a wasteful number, since it uses less digits than its factorization.

64055560464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 64055560464 in words is "sixty-four billion, fifty-five million, five hundred sixty thousand, four hundred sixty-four".