1161085685759 has 4 divisors (see below), whose sum is σ = 1161118977216. Its totient is φ = 1161052394304.

The previous prime is 1161085685741. The next prime is 1161085685827. The reversal of 1161085685759 is 9575865801611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1161085685759 - 2⁸ = 1161085685503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161085685159) 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, 16593359 + ... + 16663184.

It is an arithmetic number, because the mean of its divisors is an integer number (290279744304).

Almost surely, 2^{1161085685759} is an apocalyptic number.

1161085685759 is a deficient number, since it is larger than the sum of its proper divisors (33291457).

1161085685759 is an equidigital number, since it uses as much as digits as its factorization.

1161085685759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33291456.

The product of its (nonzero) digits is 18144000, while the sum is 62.

The spelling of 1161085685759 in words is "one trillion, one hundred sixty-one billion, eighty-five million, six hundred eighty-five thousand, seven hundred fifty-nine".