11466881536 has 120 divisors (see below), whose sum is σ = 25313504832. Its totient is φ = 5185382400.

The previous prime is 11466881533. The next prime is 11466881551. The reversal of 11466881536 is 63518866411.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11466881536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11466881533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16788651 + ... + 16789333.

Almost surely, 2^11466881536 is an apocalyptic number.

11466881536 is a gapful number since it is divisible by the number (16) 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 11466881536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12656752416).

11466881536 is an abundant number, since it is smaller than the sum of its proper divisors (13846623296).

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

11466881536 is an equidigital number, since it uses as much as digits as its factorization.

11466881536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 967 counting only the distinct ones).

The product of its digits is 829440, while the sum is 49.

The spelling of 11466881536 in words is "eleven billion, four hundred sixty-six million, eight hundred eighty-one thousand, five hundred thirty-six".