26220343156 has 72 divisors (see below), whose sum is σ = 55528351200. Its totient is φ = 10788765120.

The previous prime is 26220343129. The next prime is 26220343187. The reversal of 26220343156 is 65134302262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1004551 + ... + 1030321.

It is an arithmetic number, because the mean of its divisors is an integer number (771227100).

Almost surely, 2^26220343156 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 26220343156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27764175600).

26220343156 is an abundant number, since it is smaller than the sum of its proper divisors (29308008044).

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

26220343156 is a wasteful number, since it uses less digits than its factorization.

26220343156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25997 (or 25988 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 26220343156 in words is "twenty-six billion, two hundred twenty million, three hundred forty-three thousand, one hundred fifty-six".