1165642465611 has 16 divisors (see below), whose sum is σ = 1690314746400. Its totient is φ = 710216275200.

The previous prime is 1165642465597. The next prime is 1165642465621.

1165642465611 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1165642465611 - 2¹⁰ = 1165642464587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1165642465621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147957786 + ... + 147965663.

It is an arithmetic number, because the mean of its divisors is an integer number (105644671650).

Almost surely, 2^{1165642465611} is an apocalyptic number.

1165642465611 is a deficient number, since it is larger than the sum of its proper divisors (524672280789).

1165642465611 is a wasteful number, since it uses less digits than its factorization.

1165642465611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295923566.

The product of its digits is 1036800, while the sum is 48.

The spelling of 1165642465611 in words is "one trillion, one hundred sixty-five billion, six hundred forty-two million, four hundred sixty-five thousand, six hundred eleven".