67604101666 has 16 divisors (see below), whose sum is σ = 108246749760. Its totient is φ = 31571966160.

The previous prime is 67604101657. The next prime is 67604101679. The reversal of 67604101666 is 66610140676.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12525861 + ... + 12531256.

It is an arithmetic number, because the mean of its divisors is an integer number (6765421860).

Almost surely, 2^67604101666 is an apocalyptic number.

67604101666 is a deficient number, since it is larger than the sum of its proper divisors (40642648094).

67604101666 is a wasteful number, since it uses less digits than its factorization.

67604101666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25057209.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 67604101666 in words is "sixty-seven billion, six hundred four million, one hundred one thousand, six hundred sixty-six".