23551353340 has 48 divisors (see below), whose sum is σ = 49829405472. Its totient is φ = 9349906176.

The previous prime is 23551353317. The next prime is 23551353341. The reversal of 23551353340 is 4335315532.

It is a junction number, because it is equal to n+sod(n) for n = 23551353296 and 23551353305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23551353341) 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, 3126819 + ... + 3134341.

It is an arithmetic number, because the mean of its divisors is an integer number (1038112614).

Almost surely, 2^23551353340 is an apocalyptic number.

23551353340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23551353340 is an abundant number, since it is smaller than the sum of its proper divisors (26278052132).

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

23551353340 is a wasteful number, since it uses less digits than its factorization.

23551353340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8686 (or 8684 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 34.

Adding to 23551353340 its reverse (4335315532), we get a palindrome (27886668872).

The spelling of 23551353340 in words is "twenty-three billion, five hundred fifty-one million, three hundred fifty-three thousand, three hundred forty".