115205344245 has 24 divisors (see below), whose sum is σ = 204559736472. Its totient is φ = 59944243200.

The previous prime is 115205344229. The next prime is 115205344271. The reversal of 115205344245 is 542443502511.

115205344245 is a `hidden beast` number, since 1 + 1 + 5 + 205 + 3 + 442 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12493427076 + 102711917169 = 111774^2 + 320487^2 .

It is not a de Polignac number, because 115205344245 - 2⁴ = 115205344229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31219116 + ... + 31222805.

It is an arithmetic number, because the mean of its divisors is an integer number (8523322353).

Almost surely, 2^115205344245 is an apocalyptic number.

115205344245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115205344245 is a deficient number, since it is larger than the sum of its proper divisors (89354392227).

115205344245 is a wasteful number, since it uses less digits than its factorization.

115205344245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62441973 (or 62441970 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 115205344245 its reverse (542443502511), we get a palindrome (657648846756).

The spelling of 115205344245 in words is "one hundred fifteen billion, two hundred five million, three hundred forty-four thousand, two hundred forty-five".