11331340650 has 864 divisors, whose sum is σ = 41480112960. Its totient is φ = 2194698240.

The previous prime is 11331340649. The next prime is 11331340661. The reversal of 11331340650 is 5604313311.

11331340650 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 1 + 3 + 4 + 0 + 650 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 263519529 + ... + 263519571.

It is an arithmetic number, because the mean of its divisors is an integer number (48009390).

Almost surely, 2^11331340650 is an apocalyptic number.

11331340650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11331340650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20740056480).

11331340650 is an abundant number, since it is smaller than the sum of its proper divisors (30148772310).

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

11331340650 is a wasteful number, since it uses less digits than its factorization.

11331340650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 11331340650 its reverse (5604313311), we get a palindrome (16935653961).

The spelling of 11331340650 in words is "eleven billion, three hundred thirty-one million, three hundred forty thousand, six hundred fifty".