115890065651 has 4 divisors (see below), whose sum is σ = 116151668952. Its totient is φ = 115628462352.

The previous prime is 115890065617. The next prime is 115890065653. The reversal of 115890065651 is 156560098511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156560098511 = 109 ⋅1436331179.

It is a cyclic number.

It is not a de Polignac number, because 115890065651 - 2¹⁰ = 115890064627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115890065596 and 115890065605.

It is not an unprimeable number, because it can be changed into a prime (115890065653) 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, 130800986 + ... + 130801871.

It is an arithmetic number, because the mean of its divisors is an integer number (29037917238).

Almost surely, 2^115890065651 is an apocalyptic number.

115890065651 is a deficient number, since it is larger than the sum of its proper divisors (261603301).

115890065651 is an equidigital number, since it uses as much as digits as its factorization.

115890065651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261603300.

The product of its (nonzero) digits is 324000, while the sum is 47.

The spelling of 115890065651 in words is "one hundred fifteen billion, eight hundred ninety million, sixty-five thousand, six hundred fifty-one".