666700740700 has 18 divisors (see below), whose sum is σ = 1446740607536. Its totient is φ = 266680296240.

The previous prime is 666700740689. The next prime is 666700740731. The reversal of 666700740700 is 7047007666.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 3333503604 + ... + 3333503803.

Almost surely, 2^666700740700 is an apocalyptic number.

It is an amenable number.

666700740700 is an abundant number, since it is smaller than the sum of its proper divisors (780039866836).

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

666700740700 is a wasteful number, since it uses less digits than its factorization.

666700740700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667007421 (or 6667007414 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 666700740700 in words is "six hundred sixty-six billion, seven hundred million, seven hundred forty thousand, seven hundred".