11720707817472 has 360 divisors, whose sum is σ = 36639749030976. Its totient is φ = 3737008078848.

The previous prime is 11720707817393. The next prime is 11720707817473. The reversal of 11720707817472 is 27471870702711.

11720707817472 is a `hidden beast` number, since 1 + 1 + 7 + 20 + 70 + 7 + 81 + 7 + 472 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (11720707817473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91506178 + ... + 91634174.

Almost surely, 2^{11720707817472} is an apocalyptic number.

11720707817472 is a gapful number since it is divisible by the number (12) 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 11720707817472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18319874515488).

11720707817472 is an abundant number, since it is smaller than the sum of its proper divisors (24919041213504).

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

11720707817472 is an frugal number, since it uses more digits than its factorization.

11720707817472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128063 (or 128025 counting only the distinct ones).

The product of its (nonzero) digits is 2151296, while the sum is 54.

The spelling of 11720707817472 in words is "eleven trillion, seven hundred twenty billion, seven hundred seven million, eight hundred seventeen thousand, four hundred seventy-two".