64625422416 has 20 divisors (see below), whose sum is σ = 166949008032. Its totient is φ = 21541807456.

The previous prime is 64625422397. The next prime is 64625422417. The reversal of 64625422416 is 61422452646.

64625422416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64625422417) 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, 673181436 + ... + 673181531.

Almost surely, 2^64625422416 is an apocalyptic number.

It is an amenable number.

64625422416 is an abundant number, since it is smaller than the sum of its proper divisors (102323585616).

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

64625422416 is a wasteful number, since it uses less digits than its factorization.

64625422416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346362978 (or 1346362972 counting only the distinct ones).

The product of its digits is 552960, while the sum is 42.

The spelling of 64625422416 in words is "sixty-four billion, six hundred twenty-five million, four hundred twenty-two thousand, four hundred sixteen".