11361122256 has 80 divisors (see below), whose sum is σ = 32044466880. Its totient is φ = 3439887360.

The previous prime is 11361122249. The next prime is 11361122261. The reversal of 11361122256 is 65222116311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672246 + ... + 688938.

It is an arithmetic number, because the mean of its divisors is an integer number (400555836).

Almost surely, 2^11361122256 is an apocalyptic number.

11361122256 is a gapful number since it is divisible by the number (16) 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 11361122256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16022233440).

11361122256 is an abundant number, since it is smaller than the sum of its proper divisors (20683344624).

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

11361122256 is a wasteful number, since it uses less digits than its factorization.

11361122256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18004 (or 17998 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

Adding to 11361122256 its reverse (65222116311), we get a palindrome (76583238567).

The spelling of 11361122256 in words is "eleven billion, three hundred sixty-one million, one hundred twenty-two thousand, two hundred fifty-six".