115305535311505 has 16 divisors (see below), whose sum is σ = 172509060622464. Its totient is φ = 71878775258880.

The previous prime is 115305535311469. The next prime is 115305535311511. The reversal of 115305535311505 is 505113535503511.

It is not a de Polignac number, because 115305535311505 - 2¹³ = 115305535303313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149747448072 + ... + 149747448841.

It is an arithmetic number, because the mean of its divisors is an integer number (10781816288904).

Almost surely, 2^{115305535311505} is an apocalyptic number.

It is an amenable number.

115305535311505 is a deficient number, since it is larger than the sum of its proper divisors (57203525310959).

115305535311505 is a wasteful number, since it uses less digits than its factorization.

115305535311505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299494896936.

The product of its (nonzero) digits is 421875, while the sum is 43.

The spelling of 115305535311505 in words is "one hundred fifteen trillion, three hundred five billion, five hundred thirty-five million, three hundred eleven thousand, five hundred five".