115520551124215 has 4 divisors (see below), whose sum is σ = 138624661349064. Its totient is φ = 92416440899368.

The previous prime is 115520551124177. The next prime is 115520551124221. The reversal of 115520551124215 is 512421155025511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115520551124215 - 2¹¹ = 115520551122167 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11552055112417 + ... + 11552055112426.

It is an arithmetic number, because the mean of its divisors is an integer number (34656165337266).

Almost surely, 2^{115520551124215} is an apocalyptic number.

115520551124215 is a deficient number, since it is larger than the sum of its proper divisors (23104110224849).

115520551124215 is an equidigital number, since it uses as much as digits as its factorization.

115520551124215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23104110224848.

The product of its (nonzero) digits is 100000, while the sum is 40.

The spelling of 115520551124215 in words is "one hundred fifteen trillion, five hundred twenty billion, five hundred fifty-one million, one hundred twenty-four thousand, two hundred fifteen".