10208080015691 has 2 divisors, whose sum is σ = 10208080015692. Its totient is φ = 10208080015690.

The previous prime is 10208080015621. The next prime is 10208080015717. The reversal of 10208080015691 is 19651008080201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10208080015691 is a prime.

It is not a weakly prime, because it can be changed into another prime (10208080015621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5104040007845 + 5104040007846.

It is an arithmetic number, because the mean of its divisors is an integer number (5104040007846).

Almost surely, 2^{10208080015691} is an apocalyptic number.

10208080015691 is a deficient number, since it is larger than the sum of its proper divisors (1).

10208080015691 is an equidigital number, since it uses as much as digits as its factorization.

10208080015691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 41.

Adding to 10208080015691 its reverse (19651008080201), we get a palindrome (29859088095892).

The spelling of 10208080015691 in words is "ten trillion, two hundred eight billion, eighty million, fifteen thousand, six hundred ninety-one".