13664788992 has 80 divisors (see below), whose sum is σ = 40448765280. Its totient is φ = 4554925056.

The previous prime is 13664788939. The next prime is 13664788993. The reversal of 13664788992 is 29988746631.

13664788992 is a `hidden beast` number, since 13 + 66 + 478 + 8 + 9 + 92 = 666.

It is not an unprimeable number, because it can be changed into a prime (13664788993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480418 + ... + 508065.

It is an arithmetic number, because the mean of its divisors is an integer number (505609566).

Almost surely, 2^13664788992 is an apocalyptic number.

13664788992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13664788992 is an abundant number, since it is smaller than the sum of its proper divisors (26783976288).

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

13664788992 is an frugal number, since it uses more digits than its factorization.

13664788992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988510 (or 988488 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The spelling of 13664788992 in words is "thirteen billion, six hundred sixty-four million, seven hundred eighty-eight thousand, nine hundred ninety-two".