12641365648 has 40 divisors (see below), whose sum is σ = 25947455328. Its totient is φ = 5945651712.

The previous prime is 12641365643. The next prime is 12641365657. The reversal of 12641365648 is 84656314621.

It is a super-3 number, since 3×12641365648³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12641365598 and 12641365607.

It is not an unprimeable number, because it can be changed into a prime (12641365643) 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, 533215 + ... + 556417.

Almost surely, 2^12641365648 is an apocalyptic number.

It is an amenable number.

12641365648 is an abundant number, since it is smaller than the sum of its proper divisors (13306089680).

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

12641365648 is a wasteful number, since it uses less digits than its factorization.

12641365648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25231 (or 25225 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The spelling of 12641365648 in words is "twelve billion, six hundred forty-one million, three hundred sixty-five thousand, six hundred forty-eight".