115636736420 has 24 divisors (see below), whose sum is σ = 242980315704. Its totient is φ = 46227424256.

The previous prime is 115636736329. The next prime is 115636736429. The reversal of 115636736420 is 24637636511.

It can be written as a sum of positive squares in 4 ways, for example, as 47012646976 + 68624089444 = 216824^2 + 261962^2 .

It is not an unprimeable number, because it can be changed into a prime (115636736429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1669607 + ... + 1737486.

It is an arithmetic number, because the mean of its divisors is an integer number (10124179821).

Almost surely, 2^115636736420 is an apocalyptic number.

115636736420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115636736420 is an abundant number, since it is smaller than the sum of its proper divisors (127343579284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115636736420 is a wasteful number, since it uses less digits than its factorization.

115636736420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408799 (or 3408797 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 44.

Subtracting from 115636736420 its reverse (24637636511), we obtain a palindrome (90999099909).

The spelling of 115636736420 in words is "one hundred fifteen billion, six hundred thirty-six million, seven hundred thirty-six thousand, four hundred twenty".