65566444002 has 16 divisors (see below), whose sum is σ = 132606292320. Its totient is φ = 21609913952.

The previous prime is 65566443959. The next prime is 65566444093. The reversal of 65566444002 is 20044466556.

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, 61391268 + ... + 61392335.

It is an arithmetic number, because the mean of its divisors is an integer number (8287893270).

Almost surely, 2^65566444002 is an apocalyptic number.

65566444002 is an abundant number, since it is smaller than the sum of its proper divisors (67039848318).

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

65566444002 is a wasteful number, since it uses less digits than its factorization.

65566444002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122783697.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 65566444002 in words is "sixty-five billion, five hundred sixty-six million, four hundred forty-four thousand, two".