115555044243 has 16 divisors (see below), whose sum is σ = 155787949440. Its totient is φ = 76182497664.

The previous prime is 115555044239. The next prime is 115555044247. The reversal of 115555044243 is 342440555511.

It is an interprime number because it is at equal distance from previous prime (115555044239) and next prime (115555044247).

It is not a de Polignac number, because 115555044243 - 2² = 115555044239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115555044247) 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, 234553 + ... + 534906.

It is an arithmetic number, because the mean of its divisors is an integer number (9736746840).

Almost surely, 2^115555044243 is an apocalyptic number.

115555044243 is a deficient number, since it is larger than the sum of its proper divisors (40232905197).

115555044243 is a wasteful number, since it uses less digits than its factorization.

115555044243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770018.

The product of its (nonzero) digits is 240000, while the sum is 39.

Adding to 115555044243 its reverse (342440555511), we get a palindrome (457995599754).

The spelling of 115555044243 in words is "one hundred fifteen billion, five hundred fifty-five million, forty-four thousand, two hundred forty-three".