2116865381159 has 8 divisors (see below), whose sum is σ = 2189888692320. Its totient is φ = 2043843933600.

The previous prime is 2116865381143. The next prime is 2116865381161. The reversal of 2116865381159 is 9511835686112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2116865381159 - 2⁴ = 2116865381143 is a prime.

It is a super-2 number, since 2×2116865381159² (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 (2116865381179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2081174 + ... + 2926604.

It is an arithmetic number, because the mean of its divisors is an integer number (273736086540).

Almost surely, 2^{2116865381159} is an apocalyptic number.

2116865381159 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2116865381159 is a deficient number, since it is larger than the sum of its proper divisors (73023311161).

2116865381159 is an equidigital number, since it uses as much as digits as its factorization.

2116865381159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931801.

The product of its digits is 3110400, while the sum is 56.

The spelling of 2116865381159 in words is "two trillion, one hundred sixteen billion, eight hundred sixty-five million, three hundred eighty-one thousand, one hundred fifty-nine".