23646623116440 has 128 divisors (see below), whose sum is σ = 70981527260160. Its totient is φ = 6302064489984.

The previous prime is 23646623116433. The next prime is 23646623116447. The reversal of 23646623116440 is 4461132664632.

It is an interprime number because it is at equal distance from previous prime (23646623116433) and next prime (23646623116447).

It is a super-3 number, since 3×23646623116440³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23646623116440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23646623116447) 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, 2421068437 + ... + 2421078203.

It is an arithmetic number, because the mean of its divisors is an integer number (554543181720).

Almost surely, 2^{23646623116440} is an apocalyptic number.

23646623116440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23646623116440 is an abundant number, since it is smaller than the sum of its proper divisors (47334904143720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23646623116440 is a wasteful number, since it uses less digits than its factorization.

23646623116440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19561 (or 19557 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 48.

The spelling of 23646623116440 in words is "twenty-three trillion, six hundred forty-six billion, six hundred twenty-three million, one hundred sixteen thousand, four hundred forty".