23543498880 has 1280 divisors, whose sum is σ = 100769961600. Its totient is φ = 5175705600.

The previous prime is 23543498863. The next prime is 23543498911. The reversal of 23543498880 is 8889434532.

23543498880 is a `hidden beast` number, since 2 + 3 + 543 + 4 + 98 + 8 + 8 + 0 = 666.

It is a super-2 number, since 2×23543498880² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 444216934 + ... + 444216986.

Almost surely, 2^23543498880 is an apocalyptic number.

23543498880 is a gapful number since it is divisible by the number (20) 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 23543498880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50384980800).

23543498880 is an abundant number, since it is smaller than the sum of its proper divisors (77226462720).

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

23543498880 is a wasteful number, since it uses less digits than its factorization.

23543498880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 23543498880 in words is "twenty-three billion, five hundred forty-three million, four hundred ninety-eight thousand, eight hundred eighty".