665263132 has 48 divisors (see below), whose sum is σ = 1261915200. Its totient is φ = 305930240.

The previous prime is 665263129. The next prime is 665263139. The reversal of 665263132 is 231362566.

665263132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665263139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1037532 + ... + 1038172.

It is an arithmetic number, because the mean of its divisors is an integer number (26289900).

Almost surely, 2^665263132 is an apocalyptic number.

It is an amenable number.

665263132 is a deficient number, since it is larger than the sum of its proper divisors (596652068).

665263132 is a wasteful number, since it uses less digits than its factorization.

665263132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1084 counting only the distinct ones).

The product of its digits is 38880, while the sum is 34.

The square root of 665263132 is about 25792.6953225133. The cubic root of 665263132 is about 872.9669837806.

The spelling of 665263132 in words is "six hundred sixty-five million, two hundred sixty-three thousand, one hundred thirty-two".