115516240201 has 4 divisors (see below), whose sum is σ = 122311313172. Its totient is φ = 108721167232.

The previous prime is 115516240157. The next prime is 115516240207. The reversal of 115516240201 is 102042615511.

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 84884239801 + 30632000400 = 291349^2 + 175020^2 .

It is a cyclic number.

It is not a de Polignac number, because 115516240201 - 2¹⁷ = 115516109129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115516240201.

It is not an unprimeable number, because it can be changed into a prime (115516240207) 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, 3397536460 + ... + 3397536493.

It is an arithmetic number, because the mean of its divisors is an integer number (30577828293).

Almost surely, 2^115516240201 is an apocalyptic number.

It is an amenable number.

115516240201 is a deficient number, since it is larger than the sum of its proper divisors (6795072971).

115516240201 is an equidigital number, since it uses as much as digits as its factorization.

115516240201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6795072970.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 115516240201 its reverse (102042615511), we get a palindrome (217558855712).

The spelling of 115516240201 in words is "one hundred fifteen billion, five hundred sixteen million, two hundred forty thousand, two hundred one".