64616747416 has 32 divisors (see below), whose sum is σ = 134975307600. Its totient is φ = 28794729600.

The previous prime is 64616747357. The next prime is 64616747483. The reversal of 64616747416 is 61474761646.

64616747416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10709310 + ... + 10715341.

Almost surely, 2^64616747416 is an apocalyptic number.

It is an amenable number.

64616747416 is an abundant number, since it is smaller than the sum of its proper divisors (70358560184).

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

64616747416 is a wasteful number, since it uses less digits than its factorization.

64616747416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21424699 (or 21424695 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 52.

The spelling of 64616747416 in words is "sixty-four billion, six hundred sixteen million, seven hundred forty-seven thousand, four hundred sixteen".