23656132116451 has 4 divisors (see below), whose sum is σ = 24009208715272. Its totient is φ = 23303055517632.

The previous prime is 23656132116433. The next prime is 23656132116493. The reversal of 23656132116451 is 15461123165632.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23656132116451 - 2¹¹ = 23656132114403 is a prime.

It is a super-2 number, since 2×23656132116451² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23656132113451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176538299310 + ... + 176538299443.

It is an arithmetic number, because the mean of its divisors is an integer number (6002302178818).

Almost surely, 2^{23656132116451} is an apocalyptic number.

23656132116451 is a deficient number, since it is larger than the sum of its proper divisors (353076598821).

23656132116451 is an equidigital number, since it uses as much as digits as its factorization.

23656132116451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353076598820.

The product of its digits is 777600, while the sum is 46.

The spelling of 23656132116451 in words is "twenty-three trillion, six hundred fifty-six billion, one hundred thirty-two million, one hundred sixteen thousand, four hundred fifty-one".