665533567322 has 8 divisors (see below), whose sum is σ = 1075092685716. Its totient is φ = 307169338752.

The previous prime is 665533567297. The next prime is 665533567427. The reversal of 665533567322 is 223765335566.

665533567322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 645742423561 + 19791143761 = 803581^2 + 140681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 12798722423 + ... + 12798722474.

Almost surely, 2^665533567322 is an apocalyptic number.

665533567322 is a deficient number, since it is larger than the sum of its proper divisors (409559118394).

665533567322 is a wasteful number, since it uses less digits than its factorization.

665533567322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25597444912.

The product of its digits is 20412000, while the sum is 53.

The spelling of 665533567322 in words is "six hundred sixty-five billion, five hundred thirty-three million, five hundred sixty-seven thousand, three hundred twenty-two".