11451331026256 has 80 divisors (see below), whose sum is σ = 25510995048960. Its totient is φ = 4930838581760.

The previous prime is 11451331026251. The next prime is 11451331026269. The reversal of 11451331026256 is 65262013315411.

It is a super-2 number, since 2×11451331026256² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11451331026251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20895520 + ... + 21436543.

It is an arithmetic number, because the mean of its divisors is an integer number (318887438112).

Almost surely, 2^{11451331026256} is an apocalyptic number.

11451331026256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11451331026256 is an abundant number, since it is smaller than the sum of its proper divisors (14059664022704).

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

11451331026256 is a wasteful number, since it uses less digits than its factorization.

11451331026256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42332164 (or 42332158 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 11451331026256 in words is "eleven trillion, four hundred fifty-one billion, three hundred thirty-one million, twenty-six thousand, two hundred fifty-six".