2158111942441 has 16 divisors (see below), whose sum is σ = 2656199534464. Its totient is φ = 1707477439104.

The previous prime is 2158111942439. The next prime is 2158111942477. The reversal of 2158111942441 is 1442491118512.

It is a cyclic number.

It is not a de Polignac number, because 2158111942441 - 2¹ = 2158111942439 is a prime.

It is a super-2 number, since 2×2158111942441² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2158111942411) 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, 4026346 + ... + 4530748.

It is an arithmetic number, because the mean of its divisors is an integer number (166012470904).

Almost surely, 2^{2158111942441} is an apocalyptic number.

It is an amenable number.

2158111942441 is a deficient number, since it is larger than the sum of its proper divisors (498087592023).

2158111942441 is a wasteful number, since it uses less digits than its factorization.

2158111942441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551440.

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

The spelling of 2158111942441 in words is "two trillion, one hundred fifty-eight billion, one hundred eleven million, nine hundred forty-two thousand, four hundred forty-one".