115555055115550 has 24 divisors (see below), whose sum is σ = 222343864673400. Its totient is φ = 44628159216480.

The previous prime is 115555055115547. The next prime is 115555055115581. The reversal of 115555055115550 is 55511550555511.

It is a junction number, because it is equal to n+sod(n) for n = 115555055115494 and 115555055115503.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 39846569280 + ... + 39846572179.

It is an arithmetic number, because the mean of its divisors is an integer number (9264327694725).

Almost surely, 2^{115555055115550} is an apocalyptic number.

115555055115550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115555055115550 is a deficient number, since it is larger than the sum of its proper divisors (106788809557850).

115555055115550 is a wasteful number, since it uses less digits than its factorization.

115555055115550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79693141500 (or 79693141495 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 49.

The spelling of 115555055115550 in words is "one hundred fifteen trillion, five hundred fifty-five billion, fifty-five million, one hundred fifteen thousand, five hundred fifty".