1165522255611 has 32 divisors (see below), whose sum is σ = 1931331018240. Its totient is φ = 609893991936.

The previous prime is 1165522255591. The next prime is 1165522255631.

It is a happy number.

1165522255611 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (1165522255591) and next prime (1165522255631).

It is not a de Polignac number, because 1165522255611 - 2¹⁷ = 1165522124539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1165522255631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44105281 + ... + 44131698.

It is an arithmetic number, because the mean of its divisors is an integer number (60354094320).

Almost surely, 2^{1165522255611} is an apocalyptic number.

1165522255611 is a deficient number, since it is larger than the sum of its proper divisors (765808762629).

1165522255611 is a wasteful number, since it uses less digits than its factorization.

1165522255611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88237043.

The product of its digits is 180000, while the sum is 42.

The spelling of 1165522255611 in words is "one trillion, one hundred sixty-five billion, five hundred twenty-two million, two hundred fifty-five thousand, six hundred eleven".