64516608 has 160 divisors (see below), whose sum is σ = 206236800. Its totient is φ = 19795968.

The previous prime is 64516607. The next prime is 64516631. The reversal of 64516608 is 80661546.

64516608 is a `hidden beast` number, since 6 + 45 + 1 + 6 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (64516601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179533 + ... + 179891.

It is an arithmetic number, because the mean of its divisors is an integer number (1288980).

Almost surely, 2^64516608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64516608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103118400).

64516608 is an abundant number, since it is smaller than the sum of its proper divisors (141720192).

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

64516608 is a wasteful number, since it uses less digits than its factorization.

64516608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 64516608 is about 8032.2231044711. The cubic root of 64516608 is about 401.0733837087.

The spelling of 64516608 in words is "sixty-four million, five hundred sixteen thousand, six hundred eight".