64317616 has 20 divisors (see below), whose sum is σ = 135944424. Its totient is φ = 29235200.

The previous prime is 64317587. The next prime is 64317619. The reversal of 64317616 is 61671346.

64317616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64317619) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 182545 + ... + 182896.

Almost surely, 2^64317616 is an apocalyptic number.

It is an amenable number.

64317616 is an abundant number, since it is smaller than the sum of its proper divisors (71626808).

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

64317616 is a wasteful number, since it uses less digits than its factorization.

64317616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365460 (or 365454 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 64317616 is about 8019.8264320370. The cubic root of 64317616 is about 400.6606083908.

The spelling of 64317616 in words is "sixty-four million, three hundred seventeen thousand, six hundred sixteen".