12641260164 has 144 divisors (see below), whose sum is σ = 32481896832. Its totient is φ = 3824311296.

The previous prime is 12641260147. The next prime is 12641260169. The reversal of 12641260164 is 46106214621.

It is not an unprimeable number, because it can be changed into a prime (12641260169) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48065497 + ... + 48065759.

It is an arithmetic number, because the mean of its divisors is an integer number (225568728).

Almost surely, 2^12641260164 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 12641260164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16240948416).

12641260164 is an abundant number, since it is smaller than the sum of its proper divisors (19840636668).

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

12641260164 is a wasteful number, since it uses less digits than its factorization.

12641260164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

Adding to 12641260164 its reverse (46106214621), we get a palindrome (58747474785).

The spelling of 12641260164 in words is "twelve billion, six hundred forty-one million, two hundred sixty thousand, one hundred sixty-four".