11611443256 has 32 divisors (see below), whose sum is σ = 24913945440. Its totient is φ = 4969876608.

The previous prime is 11611443251. The next prime is 11611443289. The reversal of 11611443256 is 65234411611.

It is a super-2 number, since 2×11611443256² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11611443251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90831 + ... + 177406.

It is an arithmetic number, because the mean of its divisors is an integer number (778560795).

Almost surely, 2^11611443256 is an apocalyptic number.

It is an amenable number.

11611443256 is an abundant number, since it is smaller than the sum of its proper divisors (13302502184).

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

11611443256 is a wasteful number, since it uses less digits than its factorization.

11611443256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269023 (or 269019 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

Adding to 11611443256 its reverse (65234411611), we get a palindrome (76845854867).

The spelling of 11611443256 in words is "eleven billion, six hundred eleven million, four hundred forty-three thousand, two hundred fifty-six".