1665031332 has 48 divisors (see below), whose sum is σ = 4092589760. Its totient is φ = 525408768.

The previous prime is 1665031327. The next prime is 1665031369. The reversal of 1665031332 is 2331305661.

It is a happy number.

1665031332 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1665031332.

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, 562368 + ... + 565320.

Almost surely, 2^1665031332 is an apocalyptic number.

1665031332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1665031332 is an abundant number, since it is smaller than the sum of its proper divisors (2427558428).

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

1665031332 is a wasteful number, since it uses less digits than its factorization.

1665031332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5452 (or 5450 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 1665031332 is about 40804.7954534758. The cubic root of 1665031332 is about 1185.2431938688.

Adding to 1665031332 its reverse (2331305661), we get a palindrome (3996336993).

The spelling of 1665031332 in words is "one billion, six hundred sixty-five million, thirty-one thousand, three hundred thirty-two".