115543513502501 has 16 divisors (see below), whose sum is σ = 139829765353344. Its totient is φ = 93203304267264.

The previous prime is 115543513502479. The next prime is 115543513502503. The reversal of 115543513502501 is 105205315345511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 115543513502501 - 2⁶ = 115543513502437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115543513502503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41723975 + ... + 44406948.

It is an arithmetic number, because the mean of its divisors is an integer number (8739360334584).

Almost surely, 2^{115543513502501} is an apocalyptic number.

It is an amenable number.

115543513502501 is a deficient number, since it is larger than the sum of its proper divisors (24286251850843).

115543513502501 is a wasteful number, since it uses less digits than its factorization.

115543513502501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86142220.

The product of its (nonzero) digits is 225000, while the sum is 41.

The spelling of 115543513502501 in words is "one hundred fifteen trillion, five hundred forty-three billion, five hundred thirteen million, five hundred two thousand, five hundred one".