115651510240065 has 32 divisors (see below), whose sum is σ = 186021129609216. Its totient is φ = 61354602114240.

The previous prime is 115651510239977. The next prime is 115651510240181. The reversal of 115651510240065 is 560042015156511.

It is not a de Polignac number, because 115651510240065 - 2¹⁸ = 115651509977921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115651510239999 and 115651510240026.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53217894 + ... + 55348416.

It is an arithmetic number, because the mean of its divisors is an integer number (5813160300288).

Almost surely, 2^{115651510240065} is an apocalyptic number.

115651510240065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115651510240065 is a deficient number, since it is larger than the sum of its proper divisors (70369619369151).

115651510240065 is a wasteful number, since it uses less digits than its factorization.

115651510240065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149669.

The product of its (nonzero) digits is 180000, while the sum is 42.

Adding to 115651510240065 its reverse (560042015156511), we get a palindrome (675693525396576).

The spelling of 115651510240065 in words is "one hundred fifteen trillion, six hundred fifty-one billion, five hundred ten million, two hundred forty thousand, sixty-five".