64064245560 has 128 divisors (see below), whose sum is σ = 219704486400. Its totient is φ = 14639546880.

The previous prime is 64064245549. The next prime is 64064245627. The reversal of 64064245560 is 6554246046.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4639146 + ... + 4652934.

It is an arithmetic number, because the mean of its divisors is an integer number (1716441300).

Almost surely, 2^64064245560 is an apocalyptic number.

64064245560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64064245560 is an abundant number, since it is smaller than the sum of its proper divisors (155640240840).

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

64064245560 is a wasteful number, since it uses less digits than its factorization.

64064245560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19341 (or 19337 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 64064245560 in words is "sixty-four billion, sixty-four million, two hundred forty-five thousand, five hundred sixty".