11816170520080 has 20 divisors (see below), whose sum is σ = 27472596459372. Its totient is φ = 4726468208000.

The previous prime is 11816170520069. The next prime is 11816170520081. The reversal of 11816170520080 is 8002507161811.

It can be written as a sum of positive squares in 2 ways, for example, as 7334108920336 + 4482061599744 = 2708156^2 + 2117088^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (11816170520081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73851065671 + ... + 73851065830.

Almost surely, 2^{11816170520080} is an apocalyptic number.

11816170520080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11816170520080 is an abundant number, since it is smaller than the sum of its proper divisors (15656425939292).

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

11816170520080 is a wasteful number, since it uses less digits than its factorization.

11816170520080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147702131514 (or 147702131508 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 40.

Adding to 11816170520080 its reverse (8002507161811), we get a palindrome (19818677681891).

The spelling of 11816170520080 in words is "eleven trillion, eight hundred sixteen billion, one hundred seventy million, five hundred twenty thousand, eighty".