1665938332 has 12 divisors (see below), whose sum is σ = 2917217520. Its totient is φ = 832447616.

The previous prime is 1665938303. The next prime is 1665938353. The reversal of 1665938332 is 2338395661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123157 + ... + 136012.

It is an arithmetic number, because the mean of its divisors is an integer number (243101460).

Almost surely, 2^1665938332 is an apocalyptic number.

It is an amenable number.

1665938332 is a deficient number, since it is larger than the sum of its proper divisors (1251279188).

1665938332 is a wasteful number, since it uses less digits than its factorization.

1665938332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260780 (or 260778 counting only the distinct ones).

The product of its digits is 699840, while the sum is 46.

The square root of 1665938332 is about 40815.9078301586. The cubic root of 1665938332 is about 1185.4583690862.

The spelling of 1665938332 in words is "one billion, six hundred sixty-five million, nine hundred thirty-eight thousand, three hundred thirty-two".