12662255680 has 112 divisors (see below), whose sum is σ = 30566069424. Its totient is φ = 4995809280.

The previous prime is 12662255657. The next prime is 12662255681. The reversal of 12662255680 is 8655226621.

It can be written as a sum of positive squares in 8 ways, for example, as 30294016 + 12631961664 = 5504^2 + 112392^2 .

It is not an unprimeable number, because it can be changed into a prime (12662255681) 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, 8713834 + ... + 8715286.

Almost surely, 2^12662255680 is an apocalyptic number.

12662255680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12662255680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15283034712).

12662255680 is an abundant number, since it is smaller than the sum of its proper divisors (17903813744).

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

12662255680 is a wasteful number, since it uses less digits than its factorization.

12662255680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824 (or 1814 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 12662255680 in words is "twelve billion, six hundred sixty-two million, two hundred fifty-five thousand, six hundred eighty".