12056662066 has 16 divisors (see below), whose sum is σ = 18198172800. Its totient is φ = 5990649808.

The previous prime is 12056662049. The next prime is 12056662067. The reversal of 12056662066 is 66026665021.

It is not an unprimeable number, because it can be changed into a prime (12056662067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567015 + ... + 587893.

It is an arithmetic number, because the mean of its divisors is an integer number (1137385800).

Almost surely, 2^12056662066 is an apocalyptic number.

12056662066 is a deficient number, since it is larger than the sum of its proper divisors (6141510734).

12056662066 is a wasteful number, since it uses less digits than its factorization.

12056662066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22673.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 12056662066 in words is "twelve billion, fifty-six million, six hundred sixty-two thousand, sixty-six".