665513334 has 24 divisors (see below), whose sum is σ = 1495352040. Its totient is φ = 221837616.

The previous prime is 665513327. The next prime is 665513351. The reversal of 665513334 is 433315566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 684199 + ... + 685170.

It is an arithmetic number, because the mean of its divisors is an integer number (62306335).

Almost surely, 2^665513334 is an apocalyptic number.

665513334 is an abundant number, since it is smaller than the sum of its proper divisors (829838706).

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

665513334 is a wasteful number, since it uses less digits than its factorization.

665513334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369386 (or 1369374 counting only the distinct ones).

The product of its digits is 97200, while the sum is 36.

The square root of 665513334 is about 25797.5451157663. The cubic root of 665513334 is about 873.0764095093.

The spelling of 665513334 in words is "six hundred sixty-five million, five hundred thirteen thousand, three hundred thirty-four".