66700373708 has 6 divisors (see below), whose sum is σ = 116725653996. Its totient is φ = 33350186852.

The previous prime is 66700373687. The next prime is 66700373713. The reversal of 66700373708 is 80737300766.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8337546710 + ... + 8337546717.

It is an arithmetic number, because the mean of its divisors is an integer number (19454275666).

Almost surely, 2^66700373708 is an apocalyptic number.

It is an amenable number.

66700373708 is a deficient number, since it is larger than the sum of its proper divisors (50025280288).

66700373708 is a wasteful number, since it uses less digits than its factorization.

66700373708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16675093431 (or 16675093429 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 47.

The spelling of 66700373708 in words is "sixty-six billion, seven hundred million, three hundred seventy-three thousand, seven hundred eight".