12158550811 has 12 divisors (see below), whose sum is σ = 13399670200. Its totient is φ = 11024022240.

The previous prime is 12158550793. The next prime is 12158550829. The reversal of 12158550811 is 11805585121.

12158550811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12158550793) and next prime (12158550829).

It is not a de Polignac number, because 12158550811 - 2¹¹ = 12158548763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12158550311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86706 + ... + 178423.

Almost surely, 2^12158550811 is an apocalyptic number.

12158550811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12158550811 is a deficient number, since it is larger than the sum of its proper divisors (1241119389).

12158550811 is a wasteful number, since it uses less digits than its factorization.

12158550811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265530 (or 265519 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 37.

The spelling of 12158550811 in words is "twelve billion, one hundred fifty-eight million, five hundred fifty thousand, eight hundred eleven".