665460359 has 6 divisors (see below), whose sum is σ = 706908024. Its totient is φ = 626315360.

The previous prime is 665460347. The next prime is 665460413. The reversal of 665460359 is 953064566.

It is a de Polignac number, because none of the positive numbers 2^k-665460359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665460319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1151027 + ... + 1151604.

It is an arithmetic number, because the mean of its divisors is an integer number (117818004).

Almost surely, 2^665460359 is an apocalyptic number.

665460359 is a deficient number, since it is larger than the sum of its proper divisors (41447665).

665460359 is a wasteful number, since it uses less digits than its factorization.

665460359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302665 (or 2302648 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 44.

The square root of 665460359 is about 25796.5183503511. The cubic root of 665460359 is about 873.0532432066.

The spelling of 665460359 in words is "six hundred sixty-five million, four hundred sixty thousand, three hundred fifty-nine".