23556436013253 has 32 divisors (see below), whose sum is σ = 36908258849280. Its totient is φ = 13175330466240.

The previous prime is 23556436013219. The next prime is 23556436013291. The reversal of 23556436013253 is 35231063465532.

It is a happy number.

It is not a de Polignac number, because 23556436013253 - 2²¹ = 23556433916101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23556436015253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4619251 + ... + 8273472.

It is an arithmetic number, because the mean of its divisors is an integer number (1153383089040).

Almost surely, 2^{23556436013253} is an apocalyptic number.

It is an amenable number.

23556436013253 is a deficient number, since it is larger than the sum of its proper divisors (13351822836027).

23556436013253 is a wasteful number, since it uses less digits than its factorization.

23556436013253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12897009.

The product of its (nonzero) digits is 5832000, while the sum is 48.

Adding to 23556436013253 its reverse (35231063465532), we get a palindrome (58787499478785).

The spelling of 23556436013253 in words is "twenty-three trillion, five hundred fifty-six billion, four hundred thirty-six million, thirteen thousand, two hundred fifty-three".