23405120416220 has 96 divisors (see below), whose sum is σ = 52767478245888. Its totient is φ = 8697495958272.

The previous prime is 23405120416211. The next prime is 23405120416267. The reversal of 23405120416220 is 2261402150432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8360987 + ... + 10803533.

It is an arithmetic number, because the mean of its divisors is an integer number (549661231728).

Almost surely, 2^{23405120416220} is an apocalyptic number.

23405120416220 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 23405120416220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26383739122944).

23405120416220 is an abundant number, since it is smaller than the sum of its proper divisors (29362357829668).

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

23405120416220 is a wasteful number, since it uses less digits than its factorization.

23405120416220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443179 (or 2443177 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 23405120416220 its reverse (2261402150432), we get a palindrome (25666522566652).

The spelling of 23405120416220 in words is "twenty-three trillion, four hundred five billion, one hundred twenty million, four hundred sixteen thousand, two hundred twenty".