12954665568 has 96 divisors (see below), whose sum is σ = 36782575200. Its totient is φ = 3968557056.

The previous prime is 12954665561. The next prime is 12954665617. The reversal of 12954665568 is 86556645921.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12954665561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263128 + ... + 308456.

It is an arithmetic number, because the mean of its divisors is an integer number (383151825).

Almost surely, 2^12954665568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12954665568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18391287600).

12954665568 is an abundant number, since it is smaller than the sum of its proper divisors (23827909632).

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

12954665568 is a wasteful number, since it uses less digits than its factorization.

12954665568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45584 (or 45576 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 57.

The spelling of 12954665568 in words is "twelve billion, nine hundred fifty-four million, six hundred sixty-five thousand, five hundred sixty-eight".