12641322125264 has 80 divisors (see below), whose sum is σ = 28205978737536. Its totient is φ = 5376225792000.

The previous prime is 12641322125251. The next prime is 12641322125273. The reversal of 12641322125264 is 46252122314621.

It is a congruent number.

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, 42831479 + ... + 43125609.

Almost surely, 2^{12641322125264} is an apocalyptic number.

12641322125264 is a gapful number since it is divisible by the number (14) 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 12641322125264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14102989368768).

12641322125264 is an abundant number, since it is smaller than the sum of its proper divisors (15564656612272).

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

12641322125264 is a wasteful number, since it uses less digits than its factorization.

12641322125264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297084 (or 297078 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

Adding to 12641322125264 its reverse (46252122314621), we get a palindrome (58893444439885).

The spelling of 12641322125264 in words is "twelve trillion, six hundred forty-one billion, three hundred twenty-two million, one hundred twenty-five thousand, two hundred sixty-four".