16663312332 has 48 divisors (see below), whose sum is σ = 44254879200. Its totient is φ = 5418961920.

The previous prime is 16663312301. The next prime is 16663312361. The reversal of 16663312332 is 23321336661.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

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, 1877157 + ... + 1886012.

It is an arithmetic number, because the mean of its divisors is an integer number (921976650).

Almost surely, 2^16663312332 is an apocalyptic number.

16663312332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16663312332 is an abundant number, since it is smaller than the sum of its proper divisors (27591566868).

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

16663312332 is a wasteful number, since it uses less digits than its factorization.

16663312332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763223 (or 3763215 counting only the distinct ones).

The product of its digits is 69984, while the sum is 36.

Adding to 16663312332 its reverse (23321336661), we get a palindrome (39984648993).

The spelling of 16663312332 in words is "sixteen billion, six hundred sixty-three million, three hundred twelve thousand, three hundred thirty-two".