1161085685827 has 2 divisors, whose sum is σ = 1161085685828. Its totient is φ = 1161085685826.

The previous prime is 1161085685741. The next prime is 1161085685857. The reversal of 1161085685827 is 7285865801611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1161085685827 - 2⁷ = 1161085685699 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161085685857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580542842913 + 580542842914.

It is an arithmetic number, because the mean of its divisors is an integer number (580542842914).

Almost surely, 2^{1161085685827} is an apocalyptic number.

1161085685827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161085685827 is an equidigital number, since it uses as much as digits as its factorization.

1161085685827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6451200, while the sum is 58.

The spelling of 1161085685827 in words is "one trillion, one hundred sixty-one billion, eighty-five million, six hundred eighty-five thousand, eight hundred twenty-seven".