11662815384 has 216 divisors, whose sum is σ = 35416524780. Its totient is φ = 3464112960.

The previous prime is 11662815377. The next prime is 11662815389. The reversal of 11662815384 is 48351826611.

11662815384 is a `hidden beast` number, since 1 + 1 + 6 + 628 + 15 + 3 + 8 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11662815389) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 91833129 + ... + 91833255.

Almost surely, 2^11662815384 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 11662815384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17708262390).

11662815384 is an abundant number, since it is smaller than the sum of its proper divisors (23753709396).

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

11662815384 is a wasteful number, since it uses less digits than its factorization.

11662815384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 226 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The spelling of 11662815384 in words is "eleven billion, six hundred sixty-two million, eight hundred fifteen thousand, three hundred eighty-four".