11215185996 has 96 divisors (see below), whose sum is σ = 30134476288. Its totient is φ = 3180072960.

The previous prime is 11215185967. The next prime is 11215186007. The reversal of 11215185996 is 69958151211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13147506 + ... + 13148358.

Almost surely, 2^11215185996 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 11215185996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15067238144).

11215185996 is an abundant number, since it is smaller than the sum of its proper divisors (18919290292).

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

11215185996 is a wasteful number, since it uses less digits than its factorization.

11215185996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871 (or 1869 counting only the distinct ones).

The product of its digits is 194400, while the sum is 48.

The spelling of 11215185996 in words is "eleven billion, two hundred fifteen million, one hundred eighty-five thousand, nine hundred ninety-six".