12564651133307 has 32 divisors (see below), whose sum is σ = 16692974484480. Its totient is φ = 9181135877760.

The previous prime is 12564651133303. The next prime is 12564651133351. The reversal of 12564651133307 is 70333115646521.

It is not a de Polignac number, because 12564651133307 - 2² = 12564651133303 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12564651133301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103442369 + ... + 103563762.

It is an arithmetic number, because the mean of its divisors is an integer number (521655452640).

Almost surely, 2^{12564651133307} is an apocalyptic number.

12564651133307 is a deficient number, since it is larger than the sum of its proper divisors (4128323351173).

12564651133307 is a wasteful number, since it uses less digits than its factorization.

12564651133307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207006203.

The product of its (nonzero) digits is 1360800, while the sum is 47.

Adding to 12564651133307 its reverse (70333115646521), we get a palindrome (82897766779828).

The spelling of 12564651133307 in words is "twelve trillion, five hundred sixty-four billion, six hundred fifty-one million, one hundred thirty-three thousand, three hundred seven".