15665224332 has 12 divisors (see below), whose sum is σ = 36552190136. Its totient is φ = 5221741440.

The previous prime is 15665224319. The next prime is 15665224361. The reversal of 15665224332 is 23342256651.

15665224332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652717669 + ... + 652717692.

Almost surely, 2^15665224332 is an apocalyptic number.

15665224332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15665224332 is an abundant number, since it is smaller than the sum of its proper divisors (20886965804).

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

15665224332 is a wasteful number, since it uses less digits than its factorization.

15665224332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305435368 (or 1305435366 counting only the distinct ones).

The product of its digits is 259200, while the sum is 39.

The spelling of 15665224332 in words is "fifteen billion, six hundred sixty-five million, two hundred twenty-four thousand, three hundred thirty-two".