2116115284381 has 16 divisors (see below), whose sum is σ = 2445692469120. Its totient is φ = 1793358547200.

The previous prime is 2116115284337. The next prime is 2116115284403. The reversal of 2116115284381 is 1834825116112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2116115284381 is a prime.

It is a super-2 number, since 2×2116115284381² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116115284301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19068906 + ... + 19179556.

It is an arithmetic number, because the mean of its divisors is an integer number (152855779320).

Almost surely, 2^{2116115284381} is an apocalyptic number.

It is an amenable number.

2116115284381 is a deficient number, since it is larger than the sum of its proper divisors (329577184739).

2116115284381 is a wasteful number, since it uses less digits than its factorization.

2116115284381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141444.

The product of its digits is 92160, while the sum is 43.

The spelling of 2116115284381 in words is "two trillion, one hundred sixteen billion, one hundred fifteen million, two hundred eighty-four thousand, three hundred eighty-one".