23557543240000 has 420 divisors, whose sum is σ = 73380996089632. Its totient is φ = 7342600320000.

The previous prime is 23557543239991. The next prime is 23557543240019. The reversal of 23557543240000 is 4234575532.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 33532339 + ... + 34227661.

Almost surely, 2^{23557543240000} is an apocalyptic number.

23557543240000 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 23557543240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36690498044816).

23557543240000 is an abundant number, since it is smaller than the sum of its proper divisors (49823452849632).

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

23557543240000 is an equidigital number, since it uses as much as digits as its factorization.

23557543240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695384 (or 695348 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 40.

The spelling of 23557543240000 in words is "twenty-three trillion, five hundred fifty-seven billion, five hundred forty-three million, two hundred forty thousand".