11564236404 has 192 divisors, whose sum is σ = 35741368320. Its totient is φ = 3163898880.

The previous prime is 11564236391. The next prime is 11564236469. The reversal of 11564236404 is 40463246511.

11564236404 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 4 + 2 + 3 + 640 + 4 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2270749 + ... + 2275835.

It is an arithmetic number, because the mean of its divisors is an integer number (186152960).

Almost surely, 2^11564236404 is an apocalyptic number.

11564236404 is a gapful number since it is divisible by the number (14) 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 11564236404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17870684160).

11564236404 is an abundant number, since it is smaller than the sum of its proper divisors (24177131916).

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

11564236404 is a wasteful number, since it uses less digits than its factorization.

11564236404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5235 (or 5227 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 11564236404 in words is "eleven billion, five hundred sixty-four million, two hundred thirty-six thousand, four hundred four".