3212056666 has 64 divisors (see below), whose sum is σ = 6261534720. Its totient is φ = 1200070080.

The previous prime is 3212056663. The next prime is 3212056667. The reversal of 3212056666 is 6666502123.

It is not an unprimeable number, because it can be changed into a prime (3212056663) 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 31 ways as a sum of consecutive naturals, for example, 1267821 + ... + 1270351.

It is an arithmetic number, because the mean of its divisors is an integer number (97836480).

Almost surely, 2^3212056666 is an apocalyptic number.

3212056666 is a deficient number, since it is larger than the sum of its proper divisors (3049478054).

3212056666 is a wasteful number, since it uses less digits than its factorization.

3212056666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 3212056666 is about 56675.0091839428. The cubic root of 3212056666 is about 1475.4609940471.

Adding to 3212056666 its reverse (6666502123), we get a palindrome (9878558789).

The spelling of 3212056666 in words is "three billion, two hundred twelve million, fifty-six thousand, six hundred sixty-six".