64960995444 has 12 divisors (see below), whose sum is σ = 151575656064. Its totient is φ = 21653665144.

The previous prime is 64960995419. The next prime is 64960995457. The reversal of 64960995444 is 44459906946.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2706708132 + ... + 2706708155.

It is an arithmetic number, because the mean of its divisors is an integer number (12631304672).

Almost surely, 2^64960995444 is an apocalyptic number.

It is an amenable number.

64960995444 is an abundant number, since it is smaller than the sum of its proper divisors (86614660620).

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

64960995444 is a wasteful number, since it uses less digits than its factorization.

64960995444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5413416294 (or 5413416292 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 60.

The spelling of 64960995444 in words is "sixty-four billion, nine hundred sixty million, nine hundred ninety-five thousand, four hundred forty-four".