11816662320 has 240 divisors, whose sum is σ = 41324355072. Its totient is φ = 3138082560.

The previous prime is 11816662313. The next prime is 11816662339. The reversal of 11816662320 is 2326661811.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5267119 + ... + 5269361.

Almost surely, 2^11816662320 is an apocalyptic number.

11816662320 is a gapful number since it is divisible by the number (10) 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 11816662320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20662177536).

11816662320 is an abundant number, since it is smaller than the sum of its proper divisors (29507692752).

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

11816662320 is a wasteful number, since it uses less digits than its factorization.

11816662320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542 (or 2524 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 11816662320 in words is "eleven billion, eight hundred sixteen million, six hundred sixty-two thousand, three hundred twenty".