2005066701668 has 24 divisors (see below), whose sum is σ = 3787682230080. Its totient is φ = 925877876000.

The previous prime is 2005066701647. The next prime is 2005066701679. The reversal of 2005066701668 is 8661076605002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375759458 + ... + 375764793.

It is an arithmetic number, because the mean of its divisors is an integer number (157820092920).

Almost surely, 2^{2005066701668} is an apocalyptic number.

It is an amenable number.

2005066701668 is a deficient number, since it is larger than the sum of its proper divisors (1782615528412).

2005066701668 is a wasteful number, since it uses less digits than its factorization.

2005066701668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751524307 (or 751524305 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 2005066701668 in words is "two trillion, five billion, sixty-six million, seven hundred one thousand, six hundred sixty-eight".