1159999511 has 16 divisors (see below), whose sum is σ = 1301239296. Its totient is φ = 1024920000.

The previous prime is 1159999501. The next prime is 1159999523.

1159999511 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1159999511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1159999511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159999501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117476 + ... + 126966.

It is an arithmetic number, because the mean of its divisors is an integer number (81327456).

Almost surely, 2^1159999511 is an apocalyptic number.

1159999511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1159999511 is a deficient number, since it is larger than the sum of its proper divisors (141239785).

1159999511 is a wasteful number, since it uses less digits than its factorization.

1159999511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9814.

The product of its digits is 164025, while the sum is 50.

The square root of 1159999511 is about 34058.7655530849. The cubic root of 1159999511 is about 1050.7174268546.

The spelling of 1159999511 in words is "one billion, one hundred fifty-nine million, nine hundred ninety-nine thousand, five hundred eleven".