66868404202 has 16 divisors (see below), whose sum is σ = 101325530880. Its totient is φ = 33094903408.

The previous prime is 66868404193. The next prime is 66868404227. The reversal of 66868404202 is 20240486866.

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, 339013 + ... + 498664.

It is an arithmetic number, because the mean of its divisors is an integer number (6332845680).

Almost surely, 2^66868404202 is an apocalyptic number.

66868404202 is a deficient number, since it is larger than the sum of its proper divisors (34457126678).

66868404202 is a wasteful number, since it uses less digits than its factorization.

66868404202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838085.

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 66868404202 in words is "sixty-six billion, eight hundred sixty-eight million, four hundred four thousand, two hundred two".