23345555455420 has 192 divisors, whose sum is σ = 55285232486400. Its totient is φ = 8207919104000.

The previous prime is 23345555455367. The next prime is 23345555455421. The reversal of 23345555455420 is 2455455554332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23345555455421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 468883767 + ... + 468933553.

It is an arithmetic number, because the mean of its divisors is an integer number (287943919200).

Almost surely, 2^{23345555455420} is an apocalyptic number.

23345555455420 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 23345555455420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27642616243200).

23345555455420 is an abundant number, since it is smaller than the sum of its proper divisors (31939677030980).

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

23345555455420 is a wasteful number, since it uses less digits than its factorization.

23345555455420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50404 (or 50402 counting only the distinct ones).

The product of its (nonzero) digits is 36000000, while the sum is 52.

The spelling of 23345555455420 in words is "twenty-three trillion, three hundred forty-five billion, five hundred fifty-five million, four hundred fifty-five thousand, four hundred twenty".