23440206143232 has 216 divisors, whose sum is σ = 68290612148304. Its totient is φ = 7732110016512.

The previous prime is 23440206143201. The next prime is 23440206143239. The reversal of 23440206143232 is 23234160204432.

23440206143232 is a `hidden beast` number, since 2 + 3 + 4 + 4 + 0 + 2 + 0 + 614 + 3 + 2 + 32 = 666.

It is a super-2 number, since 2×23440206143232² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440206143239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87369678 + ... + 87637554.

Almost surely, 2^{23440206143232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23440206143232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34145306074152).

23440206143232 is an abundant number, since it is smaller than the sum of its proper divisors (44850406005072).

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

23440206143232 is a wasteful number, since it uses less digits than its factorization.

23440206143232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268295 (or 268278 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 23440206143232 its reverse (23234160204432), we get a palindrome (46674366347664).

The spelling of 23440206143232 in words is "twenty-three trillion, four hundred forty billion, two hundred six million, one hundred forty-three thousand, two hundred thirty-two".