10585378656691 has 2 divisors, whose sum is σ = 10585378656692. Its totient is φ = 10585378656690.

The previous prime is 10585378656661. The next prime is 10585378656781. The reversal of 10585378656691 is 19665687358501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10585378656691 - 2²⁷ = 10585244438963 is a prime.

It is a super-2 number, since 2×10585378656691² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10585378656691.

It is not a weakly prime, because it can be changed into another prime (10585378656661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5292689328345 + 5292689328346.

It is an arithmetic number, because the mean of its divisors is an integer number (5292689328346).

Almost surely, 2^{10585378656691} is an apocalyptic number.

10585378656691 is a deficient number, since it is larger than the sum of its proper divisors (1).

10585378656691 is an equidigital number, since it uses as much as digits as its factorization.

10585378656691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592000, while the sum is 70.

The spelling of 10585378656691 in words is "ten trillion, five hundred eighty-five billion, three hundred seventy-eight million, six hundred fifty-six thousand, six hundred ninety-one".