665056560522 has 8 divisors (see below), whose sum is σ = 1330113121056. Its totient is φ = 221685520172.

The previous prime is 665056560461. The next prime is 665056560541. The reversal of 665056560522 is 225065650566.

665056560522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

665056560522 is an admirable number.

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, 55421380038 + ... + 55421380049.

It is an arithmetic number, because the mean of its divisors is an integer number (166264140132).

Almost surely, 2^665056560522 is an apocalyptic number.

665056560522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

665056560522 is a wasteful number, since it uses less digits than its factorization.

665056560522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110842760092.

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 665056560522 in words is "six hundred sixty-five billion, fifty-six million, five hundred sixty thousand, five hundred twenty-two".