115651550617 has 2 divisors, whose sum is σ = 115651550618. Its totient is φ = 115651550616.

The previous prime is 115651550603. The next prime is 115651550621. The reversal of 115651550617 is 716055156511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97107647641 + 18543902976 = 311621^2 + 136176^2 .

It is an emirp because it is prime and its reverse (716055156511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115651550617 - 2¹¹ = 115651548569 is a prime.

It is not a weakly prime, because it can be changed into another prime (115651520617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57825775308 + 57825775309.

It is an arithmetic number, because the mean of its divisors is an integer number (57825775309).

Almost surely, 2^115651550617 is an apocalyptic number.

It is an amenable number.

115651550617 is a deficient number, since it is larger than the sum of its proper divisors (1).

115651550617 is an equidigital number, since it uses as much as digits as its factorization.

115651550617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157500, while the sum is 43.

The spelling of 115651550617 in words is "one hundred fifteen billion, six hundred fifty-one million, five hundred fifty thousand, six hundred seventeen".