12152011806 has 24 divisors (see below), whose sum is σ = 28722937464. Its totient is φ = 3682427760.

The previous prime is 12152011763. The next prime is 12152011831. The reversal of 12152011806 is 60811025121.

12152011806 is a `hidden beast` number, since 1 + 21 + 520 + 118 + 0 + 6 = 666.

12152011806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12152011806.

It is a congruent number.

It is an unprimeable number.

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, 30686701 + ... + 30687096.

It is an arithmetic number, because the mean of its divisors is an integer number (1196789061).

Almost surely, 2^12152011806 is an apocalyptic number.

12152011806 is an abundant number, since it is smaller than the sum of its proper divisors (16570925658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12152011806 is a wasteful number, since it uses less digits than its factorization.

12152011806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61373816 (or 61373813 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

Adding to 12152011806 its reverse (60811025121), we get a palindrome (72963036927).

It can be divided in two parts, 1215 and 2011806, that added together give a triangular number (2013021 = T₂₀₀₆).

The spelling of 12152011806 in words is "twelve billion, one hundred fifty-two million, eleven thousand, eight hundred six".