23646112345 has 16 divisors (see below), whose sum is σ = 30064035600. Its totient is φ = 17792538624.

The previous prime is 23646112333. The next prime is 23646112349. The reversal of 23646112345 is 54321164632.

It can be written as a sum of positive squares in 8 ways, for example, as 297355536 + 23348756809 = 17244^2 + 152803^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23646112345 is a prime.

It is a super-2 number, since 2×23646112345² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23646112349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41869 + ... + 221461.

It is an arithmetic number, because the mean of its divisors is an integer number (1879002225).

Almost surely, 2^23646112345 is an apocalyptic number.

It is an amenable number.

23646112345 is a deficient number, since it is larger than the sum of its proper divisors (6417923255).

23646112345 is a wasteful number, since it uses less digits than its factorization.

23646112345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181164.

The product of its digits is 103680, while the sum is 37.

Adding to 23646112345 its reverse (54321164632), we get a palindrome (77967276977).

The spelling of 23646112345 in words is "twenty-three billion, six hundred forty-six million, one hundred twelve thousand, three hundred forty-five".