11611144072 has 32 divisors (see below), whose sum is σ = 23764957920. Its totient is φ = 5274483840.

The previous prime is 11611144067. The next prime is 11611144079. The reversal of 11611144072 is 27044111611.

It is a self number, because there is not a number n which added to its sum of digits gives 11611144072.

It is not an unprimeable number, because it can be changed into a prime (11611144079) 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, 102628 + ... + 183724.

It is an arithmetic number, because the mean of its divisors is an integer number (742654935).

Almost surely, 2^11611144072 is an apocalyptic number.

It is an amenable number.

11611144072 is an abundant number, since it is smaller than the sum of its proper divisors (12153813848).

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

11611144072 is a wasteful number, since it uses less digits than its factorization.

11611144072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82741 (or 82737 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

Adding to 11611144072 its reverse (27044111611), we get a palindrome (38655255683).

The spelling of 11611144072 in words is "eleven billion, six hundred eleven million, one hundred forty-four thousand, seventy-two".