80668140668 has 12 divisors (see below), whose sum is σ = 141775124400. Its totient is φ = 40160962272.

The previous prime is 80668140601. The next prime is 80668140671. The reversal of 80668140668 is 86604186608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43275968 + ... + 43277831.

It is an arithmetic number, because the mean of its divisors is an integer number (11814593700).

Almost surely, 2^80668140668 is an apocalyptic number.

It is an amenable number.

80668140668 is a deficient number, since it is larger than the sum of its proper divisors (61106983732).

80668140668 is a wasteful number, since it uses less digits than its factorization.

80668140668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86554036 (or 86554034 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 80668140668 in words is "eighty billion, six hundred sixty-eight million, one hundred forty thousand, six hundred sixty-eight".