23563161251 has 8 divisors (see below), whose sum is σ = 26935640160. Its totient is φ = 20192260608.

The previous prime is 23563161241. The next prime is 23563161257. The reversal of 23563161251 is 15216136532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23563161251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23563161257) 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, 362396 + ... + 422441.

It is an arithmetic number, because the mean of its divisors is an integer number (3366955020).

Almost surely, 2^23563161251 is an apocalyptic number.

23563161251 is a deficient number, since it is larger than the sum of its proper divisors (3372478909).

23563161251 is an equidigital number, since it uses as much as digits as its factorization.

23563161251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789133.

The product of its digits is 32400, while the sum is 35.

Adding to 23563161251 its reverse (15216136532), we get a palindrome (38779297783).

The spelling of 23563161251 in words is "twenty-three billion, five hundred sixty-three million, one hundred sixty-one thousand, two hundred fifty-one".