11401369056 has 576 divisors, whose sum is σ = 44116047360. Its totient is φ = 2782494720.

The previous prime is 11401369013. The next prime is 11401369097. The reversal of 11401369056 is 65096310411.

It is a super-2 number, since 2×11401369056² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 11401369056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19226296 + ... + 19226888.

It is an arithmetic number, because the mean of its divisors is an integer number (76590360).

Almost surely, 2^11401369056 is an apocalyptic number.

11401369056 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 11401369056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22058023680).

11401369056 is an abundant number, since it is smaller than the sum of its proper divisors (32714678304).

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

11401369056 is a wasteful number, since it uses less digits than its factorization.

11401369056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

Adding to 11401369056 its reverse (65096310411), we get a palindrome (76497679467).

The spelling of 11401369056 in words is "eleven billion, four hundred one million, three hundred sixty-nine thousand, fifty-six".