581173114420 has 96 divisors (see below), whose sum is σ = 1279700352000. Its totient is φ = 221435182080.

The previous prime is 581173114397. The next prime is 581173114429. The reversal of 581173114420 is 24411371185.

581173114420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 581173114420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581173114429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22571874 + ... + 22597606.

It is an arithmetic number, because the mean of its divisors is an integer number (13330212000).

Almost surely, 2^581173114420 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 581173114420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639850176000).

581173114420 is an abundant number, since it is smaller than the sum of its proper divisors (698527237580).

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

581173114420 is a wasteful number, since it uses less digits than its factorization.

581173114420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26345 (or 26343 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 581173114420 in words is "five hundred eighty-one billion, one hundred seventy-three million, one hundred fourteen thousand, four hundred twenty".