75565564080 has 160 divisors (see below), whose sum is σ = 242238138624. Its totient is φ = 19475309568.

The previous prime is 75565564021. The next prime is 75565564093. The reversal of 75565564080 is 8046556557.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 807907 + ... + 896573.

Almost surely, 2^75565564080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75565564080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121119069312).

75565564080 is an abundant number, since it is smaller than the sum of its proper divisors (166672574544).

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

75565564080 is a wasteful number, since it uses less digits than its factorization.

75565564080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88803 (or 88797 counting only the distinct ones).

The product of its (nonzero) digits is 5040000, while the sum is 51.

The spelling of 75565564080 in words is "seventy-five billion, five hundred sixty-five million, five hundred sixty-four thousand, eighty".