64563360 has 48 divisors (see below), whose sum is σ = 203376096. Its totient is φ = 17216768.

The previous prime is 64563329. The next prime is 64563377. The reversal of 64563360 is 6336546.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66774 + ... + 67733.

It is an arithmetic number, because the mean of its divisors is an integer number (4237002).

Almost surely, 2^64563360 is an apocalyptic number.

64563360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64563360 is an abundant number, since it is smaller than the sum of its proper divisors (138812736).

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

64563360 is a wasteful number, since it uses less digits than its factorization.

64563360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134525 (or 134517 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 64563360 is about 8035.1328551555. The cubic root of 64563360 is about 401.1702396757.

The spelling of 64563360 in words is "sixty-four million, five hundred sixty-three thousand, three hundred sixty".