115555453243 has 16 divisors (see below), whose sum is σ = 121955291136. Its totient is φ = 109277372160.

The previous prime is 115555453241. The next prime is 115555453271. The reversal of 115555453243 is 342354555511.

It is a cyclic number.

It is not a de Polignac number, because 115555453243 - 2¹ = 115555453241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115555453243.

It is not an unprimeable number, because it can be changed into a prime (115555453241) 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, 635371 + ... + 796747.

It is an arithmetic number, because the mean of its divisors is an integer number (7622205696).

Almost surely, 2^115555453243 is an apocalyptic number.

115555453243 is a deficient number, since it is larger than the sum of its proper divisors (6399837893).

115555453243 is a wasteful number, since it uses less digits than its factorization.

115555453243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161754.

The product of its digits is 900000, while the sum is 43.

The spelling of 115555453243 in words is "one hundred fifteen billion, five hundred fifty-five million, four hundred fifty-three thousand, two hundred forty-three".