11715722072120 has 128 divisors (see below), whose sum is σ = 30440209536000. Its totient is φ = 4017697313280.

The previous prime is 11715722072101. The next prime is 11715722072123. The reversal of 11715722072120 is 2127022751711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11715722072123) 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 31 ways as a sum of consecutive naturals, for example, 10127600 + ... + 11224959.

It is an arithmetic number, because the mean of its divisors is an integer number (237814137000).

Almost surely, 2^{11715722072120} is an apocalyptic number.

11715722072120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11715722072120 is an abundant number, since it is smaller than the sum of its proper divisors (18724487463880).

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

11715722072120 is a wasteful number, since it uses less digits than its factorization.

11715722072120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21352653 (or 21352649 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 38.

The spelling of 11715722072120 in words is "eleven trillion, seven hundred fifteen billion, seven hundred twenty-two million, seventy-two thousand, one hundred twenty".