23563541456 has 80 divisors (see below), whose sum is σ = 56357892864. Its totient is φ = 9293985792.

The previous prime is 23563541453. The next prime is 23563541473. The reversal of 23563541456 is 65414536532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23563541453) 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, 466661 + ... + 514683.

Almost surely, 2^23563541456 is an apocalyptic number.

23563541456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23563541456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28178946432).

23563541456 is an abundant number, since it is smaller than the sum of its proper divisors (32794351408).

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

23563541456 is a wasteful number, since it uses less digits than its factorization.

23563541456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48388 (or 48382 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 44.

The spelling of 23563541456 in words is "twenty-three billion, five hundred sixty-three million, five hundred forty-one thousand, four hundred fifty-six".