329776960666 has 16 divisors (see below), whose sum is σ = 505571129856. Its totient is φ = 161258540976.

The previous prime is 329776960661. The next prime is 329776960691. The reversal of 329776960666 is 666069677923.

It is a super-2 number, since 2×329776960666² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (329776960661) 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 7 ways as a sum of consecutive naturals, for example, 1197141 + ... + 1446616.

It is an arithmetic number, because the mean of its divisors is an integer number (31598195616).

Almost surely, 2^329776960666 is an apocalyptic number.

329776960666 is a deficient number, since it is larger than the sum of its proper divisors (175794169190).

329776960666 is a wasteful number, since it uses less digits than its factorization.

329776960666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645133.

The product of its (nonzero) digits is 185177664, while the sum is 67.

The spelling of 329776960666 in words is "three hundred twenty-nine billion, seven hundred seventy-six million, nine hundred sixty thousand, six hundred sixty-six".