64615613422 has 16 divisors (see below), whose sum is σ = 97524306432. Its totient is φ = 32108006520.

The previous prime is 64615613417. The next prime is 64615613441. The reversal of 64615613422 is 22431651646.

64615613422 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138397 + ... + 385207.

It is an arithmetic number, because the mean of its divisors is an integer number (6095269152).

Almost surely, 2^64615613422 is an apocalyptic number.

64615613422 is a deficient number, since it is larger than the sum of its proper divisors (32908693010).

64615613422 is a wasteful number, since it uses less digits than its factorization.

64615613422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247623.

The product of its digits is 207360, while the sum is 40.

The spelling of 64615613422 in words is "sixty-four billion, six hundred fifteen million, six hundred thirteen thousand, four hundred twenty-two".