115707220085 has 8 divisors (see below), whose sum is σ = 138850505376. Its totient is φ = 92564548560.

The previous prime is 115707220081. The next prime is 115707220103. The reversal of 115707220085 is 580022707511.

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

It is not a de Polignac number, because 115707220085 - 2² = 115707220081 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 (115707220081) 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, 580190 + ... + 753680.

It is an arithmetic number, because the mean of its divisors is an integer number (17356313172).

Almost surely, 2^115707220085 is an apocalyptic number.

It is an amenable number.

115707220085 is a deficient number, since it is larger than the sum of its proper divisors (23143285291).

115707220085 is a wasteful number, since it uses less digits than its factorization.

115707220085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306883.

The product of its (nonzero) digits is 39200, while the sum is 38.

Adding to 115707220085 its reverse (580022707511), we get a palindrome (695729927596).

The spelling of 115707220085 in words is "one hundred fifteen billion, seven hundred seven million, two hundred twenty thousand, eighty-five".