665512484 has 24 divisors (see below), whose sum is σ = 1433412288. Its totient is φ = 263279520.

The previous prime is 665512459. The next prime is 665512499. The reversal of 665512484 is 484215566.

665512484 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 913802 + ... + 914529.

It is an arithmetic number, because the mean of its divisors is an integer number (59725512).

Almost surely, 2^665512484 is an apocalyptic number.

It is an amenable number.

665512484 is an abundant number, since it is smaller than the sum of its proper divisors (767899804).

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

665512484 is a wasteful number, since it uses less digits than its factorization.

665512484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828355 (or 1828353 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The square root of 665512484 is about 25797.5286413253. The cubic root of 665512484 is about 873.0760378086.

The spelling of 665512484 in words is "six hundred sixty-five million, five hundred twelve thousand, four hundred eighty-four".