67662600666 has 32 divisors (see below), whose sum is σ = 136049284800. Its totient is φ = 22433582976.

The previous prime is 67662600661. The next prime is 67662600673. The reversal of 67662600666 is 66600626676.

It is not an unprimeable number, because it can be changed into a prime (67662600661) 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 15 ways as a sum of consecutive naturals, for example, 6908625 + ... + 6918411.

It is an arithmetic number, because the mean of its divisors is an integer number (4251540150).

Almost surely, 2^67662600666 is an apocalyptic number.

67662600666 is an abundant number, since it is smaller than the sum of its proper divisors (68386684134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67662600666 is a wasteful number, since it uses less digits than its factorization.

67662600666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15838.

The product of its (nonzero) digits is 3919104, while the sum is 51.

The spelling of 67662600666 in words is "sixty-seven billion, six hundred sixty-two million, six hundred thousand, six hundred sixty-six".