65775430506 has 32 divisors (see below), whose sum is σ = 137321175168. Its totient is φ = 20982853440.

The previous prime is 65775430489. The next prime is 65775430531. The reversal of 65775430506 is 60503457756.

65775430506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2415030 + ... + 2442113.

It is an arithmetic number, because the mean of its divisors is an integer number (4291286724).

Almost surely, 2^65775430506 is an apocalyptic number.

65775430506 is an abundant number, since it is smaller than the sum of its proper divisors (71545744662).

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

65775430506 is a wasteful number, since it uses less digits than its factorization.

65775430506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857246.

The product of its (nonzero) digits is 2646000, while the sum is 48.

The spelling of 65775430506 in words is "sixty-five billion, seven hundred seventy-five million, four hundred thirty thousand, five hundred six".