64018716 has 12 divisors (see below), whose sum is σ = 149377032. Its totient is φ = 21339568.

The previous prime is 64018711. The next prime is 64018763. The reversal of 64018716 is 61781046.

It is a happy number.

64018716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64018711) 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, 2667435 + ... + 2667458.

It is an arithmetic number, because the mean of its divisors is an integer number (12448086).

Almost surely, 2^64018716 is an apocalyptic number.

It is an amenable number.

64018716 is an abundant number, since it is smaller than the sum of its proper divisors (85358316).

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

64018716 is a wasteful number, since it uses less digits than its factorization.

64018716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5334900 (or 5334898 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 64018716 is about 8001.1696644928. The cubic root of 64018716 is about 400.0389878664.

Subtracting from 64018716 its reverse (61781046), we obtain a triangular number (2237670 = T₂₁₁₅).

The spelling of 64018716 in words is "sixty-four million, eighteen thousand, seven hundred sixteen".