665364532 has 36 divisors (see below), whose sum is σ = 1398198144. Its totient is φ = 275955120.

The previous prime is 665364529. The next prime is 665364551. The reversal of 665364532 is 235463566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48678 + ... + 60829.

Almost surely, 2^665364532 is an apocalyptic number.

665364532 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

665364532 is an abundant number, since it is smaller than the sum of its proper divisors (732833612).

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

665364532 is a wasteful number, since it uses less digits than its factorization.

665364532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109556 (or 109547 counting only the distinct ones).

The product of its digits is 388800, while the sum is 40.

The square root of 665364532 is about 25794.6609204308. The cubic root of 665364532 is about 873.0113343295.

The spelling of 665364532 in words is "six hundred sixty-five million, three hundred sixty-four thousand, five hundred thirty-two".