12641551152544 has 48 divisors (see below), whose sum is σ = 26476948503936. Its totient is φ = 5920771046400.

The previous prime is 12641551152467. The next prime is 12641551152547. The reversal of 12641551152544 is 44525115514621.

It is a junction number, because it is equal to n+sod(n) for n = 12641551152494 and 12641551152503.

It is not an unprimeable number, because it can be changed into a prime (12641551152547) 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, 54951912 + ... + 55181479.

It is an arithmetic number, because the mean of its divisors is an integer number (551603093832).

Almost surely, 2^{12641551152544} is an apocalyptic number.

It is an amenable number.

12641551152544 is an abundant number, since it is smaller than the sum of its proper divisors (13835397351392).

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

12641551152544 is a wasteful number, since it uses less digits than its factorization.

12641551152544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110133629 (or 110133621 counting only the distinct ones).

The product of its digits is 960000, while the sum is 46.

The spelling of 12641551152544 in words is "twelve trillion, six hundred forty-one billion, five hundred fifty-one million, one hundred fifty-two thousand, five hundred forty-four".