115155434015145 has 64 divisors (see below), whose sum is σ = 211927290624000. Its totient is φ = 59257219408128.

The previous prime is 115155434015143. The next prime is 115155434015159. The reversal of 115155434015145 is 541510434551511.

115155434015145 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 55 + 43 + 40 + 1 + 514 + 5 = 666.

It is not a de Polignac number, because 115155434015145 - 2¹ = 115155434015143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 115155434015145.

It is not an unprimeable number, because it can be changed into a prime (115155434015143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4586574 + ... + 15853943.

It is an arithmetic number, because the mean of its divisors is an integer number (3311363916000).

Almost surely, 2^{115155434015145} is an apocalyptic number.

115155434015145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115155434015145 is a deficient number, since it is larger than the sum of its proper divisors (96771856608855).

115155434015145 is a wasteful number, since it uses less digits than its factorization.

115155434015145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20441999 (or 20441993 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 45.

Adding to 115155434015145 its reverse (541510434551511), we get a palindrome (656665868566656).

The spelling of 115155434015145 in words is "one hundred fifteen trillion, one hundred fifty-five billion, four hundred thirty-four million, fifteen thousand, one hundred forty-five".