11611372104 has 96 divisors (see below), whose sum is σ = 31966147200. Its totient is φ = 3807129600.

The previous prime is 11611372063. The next prime is 11611372109. The reversal of 11611372104 is 40127311611.

11611372104 is a `hidden beast` number, since 1 + 1 + 611 + 37 + 2 + 10 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (11611372109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1114632 + ... + 1125000.

It is an arithmetic number, because the mean of its divisors is an integer number (332980700).

Almost surely, 2^11611372104 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 11611372104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15983073600).

11611372104 is an abundant number, since it is smaller than the sum of its proper divisors (20354775096).

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

11611372104 is a wasteful number, since it uses less digits than its factorization.

11611372104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10635 (or 10628 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

Adding to 11611372104 its reverse (40127311611), we get a palindrome (51738683715).

The spelling of 11611372104 in words is "eleven billion, six hundred eleven million, three hundred seventy-two thousand, one hundred four".