75664094616 has 72 divisors (see below), whose sum is σ = 225246616140. Its totient is φ = 22928510880.

The previous prime is 75664094599. The next prime is 75664094617. The reversal of 75664094616 is 61649046657.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75664094617) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4333810 + ... + 4351233.

Almost surely, 2^75664094616 is an apocalyptic number.

It is an amenable number.

75664094616 is an abundant number, since it is smaller than the sum of its proper divisors (149582521524).

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

75664094616 is a wasteful number, since it uses less digits than its factorization.

75664094616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685077 (or 8685059 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 75664094616 in words is "seventy-five billion, six hundred sixty-four million, ninety-four thousand, six hundred sixteen".