12664956160 has 72 divisors (see below), whose sum is σ = 31933248480. Its totient is φ = 4799342592.

The previous prime is 12664956151. The next prime is 12664956169. The reversal of 12664956160 is 6165946621.

It is an interprime number because it is at equal distance from previous prime (12664956151) and next prime (12664956169).

It is a super-2 number, since 2×12664956160² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12664956160.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12664956169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236062 + ... + 284701.

It is an arithmetic number, because the mean of its divisors is an integer number (443517340).

Almost surely, 2^12664956160 is an apocalyptic number.

12664956160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12664956160 is an abundant number, since it is smaller than the sum of its proper divisors (19268292320).

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

12664956160 is an equidigital number, since it uses as much as digits as its factorization.

12664956160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520803 (or 520789 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 12664956160 in words is "twelve billion, six hundred sixty-four million, nine hundred fifty-six thousand, one hundred sixty".