11261053552 has 160 divisors (see below), whose sum is σ = 27198259200. Its totient is φ = 4410996480.

The previous prime is 11261053549. The next prime is 11261053603. The reversal of 11261053552 is 25535016211.

It is a super-2 number, since 2×11261053552² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6627199 + ... + 6628897.

It is an arithmetic number, because the mean of its divisors is an integer number (169989120).

Almost surely, 2^11261053552 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 11261053552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13599129600).

11261053552 is an abundant number, since it is smaller than the sum of its proper divisors (15937205648).

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

11261053552 is a wasteful number, since it uses less digits than its factorization.

11261053552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851 (or 1845 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 11261053552 its reverse (25535016211), we get a palindrome (36796069763).

The spelling of 11261053552 in words is "eleven billion, two hundred sixty-one million, fifty-three thousand, five hundred fifty-two".