11506371896 has 16 divisors (see below), whose sum is σ = 21878313840. Its totient is φ = 5672154880.

The previous prime is 11506371893. The next prime is 11506371923. The reversal of 11506371896 is 69817360511.

It is a self number, because there is not a number n which added to its sum of digits gives 11506371896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11506371893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10128281 + ... + 10129416.

It is an arithmetic number, because the mean of its divisors is an integer number (1367394615).

Almost surely, 2^11506371896 is an apocalyptic number.

It is an amenable number.

11506371896 is a deficient number, since it is larger than the sum of its proper divisors (10371941944).

11506371896 is a wasteful number, since it uses less digits than its factorization.

11506371896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20257774 (or 20257770 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 11506371896 in words is "eleven billion, five hundred six million, three hundred seventy-one thousand, eight hundred ninety-six".