117201010561 has 4 divisors (see below), whose sum is σ = 118276249300. Its totient is φ = 116125771824.

The previous prime is 117201010489. The next prime is 117201010609. The reversal of 117201010561 is 165010102711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90519748225 + 26681262336 = 300865^2 + 163344^2 .

It is a cyclic number.

It is not a de Polignac number, because 117201010561 - 2⁹ = 117201010049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117201010261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537619206 + ... + 537619423.

It is an arithmetic number, because the mean of its divisors is an integer number (29569062325).

Almost surely, 2^117201010561 is an apocalyptic number.

It is an amenable number.

117201010561 is a deficient number, since it is larger than the sum of its proper divisors (1075238739).

117201010561 is a wasteful number, since it uses less digits than its factorization.

117201010561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075238738.

The product of its (nonzero) digits is 420, while the sum is 25.

The spelling of 117201010561 in words is "one hundred seventeen billion, two hundred one million, ten thousand, five hundred sixty-one".