115561901603 has 8 divisors (see below), whose sum is σ = 115644452976. Its totient is φ = 115479385600.

The previous prime is 115561901573. The next prime is 115561901617. The reversal of 115561901603 is 306109165511.

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

It is a cyclic number.

It is not a de Polignac number, because 115561901603 - 2²⁰ = 115560853027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115561901503) 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 7 ways as a sum of consecutive naturals, for example, 10245575 + ... + 10256847.

It is an arithmetic number, because the mean of its divisors is an integer number (14455556622).

Almost surely, 2^115561901603 is an apocalyptic number.

115561901603 is a deficient number, since it is larger than the sum of its proper divisors (82551373).

115561901603 is a wasteful number, since it uses less digits than its factorization.

115561901603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17685.

The product of its (nonzero) digits is 24300, while the sum is 38.

The spelling of 115561901603 in words is "one hundred fifteen billion, five hundred sixty-one million, nine hundred one thousand, six hundred three".