64516016 has 20 divisors (see below), whose sum is σ = 125903400. Its totient is φ = 32024832.

The previous prime is 64515977. The next prime is 64516019. The reversal of 64516016 is 61061546.

It is a self number, because there is not a number n which added to its sum of digits gives 64516016.

It is not an unprimeable number, because it can be changed into a prime (64516019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12281 + ... + 16728.

It is an arithmetic number, because the mean of its divisors is an integer number (6295170).

Almost surely, 2^64516016 is an apocalyptic number.

It is an amenable number.

64516016 is a deficient number, since it is larger than the sum of its proper divisors (61387384).

64516016 is a wasteful number, since it uses less digits than its factorization.

64516016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29156 (or 29150 counting only the distinct ones).

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

The square root of 64516016 is about 8032.1862528206. The cubic root of 64516016 is about 401.0721569643.

It can be divided in two parts, 645 and 16016, that added together give a palindrome (16661).

The spelling of 64516016 in words is "sixty-four million, five hundred sixteen thousand, sixteen".