115320823155 has 12 divisors (see below), whose sum is σ = 199889426880. Its totient is φ = 61504438992.

The previous prime is 115320823153. The next prime is 115320823201. The reversal of 115320823155 is 551328023511.

115320823155 is a `hidden beast` number, since 1 + 15 + 320 + 8 + 2 + 315 + 5 = 666.

It is not a de Polignac number, because 115320823155 - 2¹ = 115320823153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115320823153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1281342435 + ... + 1281342524.

It is an arithmetic number, because the mean of its divisors is an integer number (16657452240).

Almost surely, 2^115320823155 is an apocalyptic number.

115320823155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115320823155 is a deficient number, since it is larger than the sum of its proper divisors (84568603725).

115320823155 is a wasteful number, since it uses less digits than its factorization.

115320823155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562684970 (or 2562684967 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 115320823155 its reverse (551328023511), we get a palindrome (666648846666).

The spelling of 115320823155 in words is "one hundred fifteen billion, three hundred twenty million, eight hundred twenty-three thousand, one hundred fifty-five".