665061332 has 48 divisors (see below), whose sum is σ = 1326998400. Its totient is φ = 289111680.

The previous prime is 665061289. The next prime is 665061359. The reversal of 665061332 is 233160566.

It is a super-2 number, since 2×665061332² = 884613150643228448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176969 + ... + 180687.

It is an arithmetic number, because the mean of its divisors is an integer number (27645800).

Almost surely, 2^665061332 is an apocalyptic number.

It is an amenable number.

665061332 is a deficient number, since it is larger than the sum of its proper divisors (661937068).

665061332 is a wasteful number, since it uses less digits than its factorization.

665061332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936 (or 3934 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 665061332 is about 25788.7830655113. The cubic root of 665061332 is about 872.8787066541.

The spelling of 665061332 in words is "six hundred sixty-five million, sixty-one thousand, three hundred thirty-two".