1165765573411 has 4 divisors (see below), whose sum is σ = 1165899102424. Its totient is φ = 1165632044400.

The previous prime is 1165765573373. The next prime is 1165765573439. The reversal of 1165765573411 is 1143755675611.

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 1165765573411 - 2¹⁷ = 1165765442339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1165765573451) 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, 66751410 + ... + 66768871.

It is an arithmetic number, because the mean of its divisors is an integer number (291474775606).

Almost surely, 2^{1165765573411} is an apocalyptic number.

1165765573411 is a deficient number, since it is larger than the sum of its proper divisors (133529013).

1165765573411 is an equidigital number, since it uses as much as digits as its factorization.

1165765573411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133529012.

The product of its digits is 2646000, while the sum is 52.

The spelling of 1165765573411 in words is "one trillion, one hundred sixty-five billion, seven hundred sixty-five million, five hundred seventy-three thousand, four hundred eleven".