115563554161 has 8 divisors (see below), whose sum is σ = 126072430848. Its totient is φ = 105055194000.

The previous prime is 115563554107. The next prime is 115563554173. The reversal of 115563554161 is 161455365511.

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 115563554161 - 2¹¹ = 115563552113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115563554191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452671 + ... + 660331.

It is an arithmetic number, because the mean of its divisors is an integer number (15759053856).

Almost surely, 2^115563554161 is an apocalyptic number.

115563554161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115563554161 is a deficient number, since it is larger than the sum of its proper divisors (10508876687).

115563554161 is a wasteful number, since it uses less digits than its factorization.

115563554161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258263.

The product of its digits is 270000, while the sum is 43.

The spelling of 115563554161 in words is "one hundred fifteen billion, five hundred sixty-three million, five hundred fifty-four thousand, one hundred sixty-one".