11993568497208 has 24 divisors (see below), whose sum is σ = 32482581346800. Its totient is φ = 3997856165712.

The previous prime is 11993568497201. The next prime is 11993568497213. The reversal of 11993568497208 is 80279486539911.

11993568497208 is a `hidden beast` number, since 1 + 1 + 99 + 356 + 84 + 97 + 20 + 8 = 666.

11993568497208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (72), and also a Moran number because the ratio is a prime number: 166577340239 = 11993568497208 / (1 + 1 + 9 + 9 + 3 + 5 + 6 + 8 + 4 + 9 + 7 + 2 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11993568497201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83288670048 + ... + 83288670191.

It is an arithmetic number, because the mean of its divisors is an integer number (1353440889450).

It is a 1-persistent number, because it is pandigital, but 2⋅11993568497208 = 23987136994416 is not.

Almost surely, 2^{11993568497208} is an apocalyptic number.

11993568497208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11993568497208 is an abundant number, since it is smaller than the sum of its proper divisors (20489012849592).

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

11993568497208 is a wasteful number, since it uses less digits than its factorization.

11993568497208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166577340251 (or 166577340244 counting only the distinct ones).

The product of its (nonzero) digits is 235146240, while the sum is 72.

The spelling of 11993568497208 in words is "eleven trillion, nine hundred ninety-three billion, five hundred sixty-eight million, four hundred ninety-seven thousand, two hundred eight".