64601516 has 12 divisors (see below), whose sum is σ = 129203088. Its totient is φ = 27686352.

The previous prime is 64601507. The next prime is 64601521. The reversal of 64601516 is 61510646.

64601516 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153571 + ... + 1153626.

It is an arithmetic number, because the mean of its divisors is an integer number (10766924).

Almost surely, 2^64601516 is an apocalyptic number.

It is an amenable number.

64601516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64601516 is a wasteful number, since it uses less digits than its factorization.

64601516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307208 (or 2307206 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 64601516 is about 8037.5068273688. The cubic root of 64601516 is about 401.2492526909.

The spelling of 64601516 in words is "sixty-four million, six hundred one thousand, five hundred sixteen".