115405511655 has 16 divisors (see below), whose sum is σ = 211027221504. Its totient is φ = 52756805280.

The previous prime is 115405511647. The next prime is 115405511659. The reversal of 115405511655 is 556115504511.

It is not a de Polignac number, because 115405511655 - 2³ = 115405511647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115405511659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549549951 + ... + 549550160.

It is an arithmetic number, because the mean of its divisors is an integer number (13189201344).

Almost surely, 2^115405511655 is an apocalyptic number.

115405511655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115405511655 is a deficient number, since it is larger than the sum of its proper divisors (95621709849).

115405511655 is a wasteful number, since it uses less digits than its factorization.

115405511655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099100126.

The product of its (nonzero) digits is 75000, while the sum is 39.

The spelling of 115405511655 in words is "one hundred fifteen billion, four hundred five million, five hundred eleven thousand, six hundred fifty-five".