12051427766 has 32 divisors (see below), whose sum is σ = 21200306688. Its totient is φ = 5030403840.

The previous prime is 12051427763. The next prime is 12051427781. The reversal of 12051427766 is 66772415021.

12051427766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12051427766² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12051427763) 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 15 ways as a sum of consecutive naturals, for example, 184151 + ... + 240861.

It is an arithmetic number, because the mean of its divisors is an integer number (662509584).

Almost surely, 2^12051427766 is an apocalyptic number.

12051427766 is a deficient number, since it is larger than the sum of its proper divisors (9148878922).

12051427766 is a wasteful number, since it uses less digits than its factorization.

12051427766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57116.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 12051427766 in words is "twelve billion, fifty-one million, four hundred twenty-seven thousand, seven hundred sixty-six".