23551607233140 has 576 divisors, whose sum is σ = 81499729274880. Its totient is φ = 4973719956480.

The previous prime is 23551607233129. The next prime is 23551607233159. The reversal of 23551607233140 is 4133270615532.

It is a happy number.

23551607233140 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 23551607233092 and 23551607233101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1142661435 + ... + 1142682045.

Almost surely, 2^{23551607233140} is an apocalyptic number.

23551607233140 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 23551607233140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40749864637440).

23551607233140 is an abundant number, since it is smaller than the sum of its proper divisors (57948122041740).

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

23551607233140 is a wasteful number, since it uses less digits than its factorization.

23551607233140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20852 (or 20827 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 42.

Adding to 23551607233140 its reverse (4133270615532), we get a palindrome (27684877848672).

The spelling of 23551607233140 in words is "twenty-three trillion, five hundred fifty-one billion, six hundred seven million, two hundred thirty-three thousand, one hundred forty".