115515433435445 has 8 divisors (see below), whose sum is σ = 139061390795736. Its totient is φ = 92117099632896.

The previous prime is 115515433435421. The next prime is 115515433435459. The reversal of 115515433435445 is 544534334515511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 103019173156 + 115412414262289 = 320966^2 + 10743017^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115515433435445 is a prime.

It is a super-3 number, since 3×115515433435445³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36905887712 + ... + 36905890841.

It is an arithmetic number, because the mean of its divisors is an integer number (17382673849467).

Almost surely, 2^{115515433435445} is an apocalyptic number.

It is an amenable number.

115515433435445 is a deficient number, since it is larger than the sum of its proper divisors (23545957360291).

115515433435445 is an equidigital number, since it uses as much as digits as its factorization.

115515433435445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73811778871.

The product of its digits is 21600000, while the sum is 53.

The spelling of 115515433435445 in words is "one hundred fifteen trillion, five hundred fifteen billion, four hundred thirty-three million, four hundred thirty-five thousand, four hundred forty-five".