11756722216845 has 16 divisors (see below), whose sum is σ = 19628614484352. Its totient is φ = 5997632203200.

The previous prime is 11756722216763. The next prime is 11756722216867. The reversal of 11756722216845 is 54861222765711.

It is not a de Polignac number, because 11756722216845 - 2¹² = 11756722212749 is a prime.

It is a super-2 number, since 2×11756722216845² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17038727506 + ... + 17038728195.

It is an arithmetic number, because the mean of its divisors is an integer number (1226788405272).

Almost surely, 2^{11756722216845} is an apocalyptic number.

11756722216845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11756722216845 is a deficient number, since it is larger than the sum of its proper divisors (7871892267507).

11756722216845 is a wasteful number, since it uses less digits than its factorization.

11756722216845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34077455732.

The product of its digits is 11289600, while the sum is 57.

The spelling of 11756722216845 in words is "eleven trillion, seven hundred fifty-six billion, seven hundred twenty-two million, two hundred sixteen thousand, eight hundred forty-five".