66700868676 has 96 divisors (see below), whose sum is σ = 168412608000. Its totient is φ = 20425013760.

The previous prime is 66700868659. The next prime is 66700868677. The reversal of 66700868676 is 67686800766.

It is not an unprimeable number, because it can be changed into a prime (66700868677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34222150 + ... + 34224098.

It is an arithmetic number, because the mean of its divisors is an integer number (1754298000).

Almost surely, 2^66700868676 is an apocalyptic number.

It is an amenable number.

66700868676 is an abundant number, since it is smaller than the sum of its proper divisors (101711739324).

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

66700868676 is a wasteful number, since it uses less digits than its factorization.

66700868676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909 (or 2907 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 66700868676 in words is "sixty-six billion, seven hundred million, eight hundred sixty-eight thousand, six hundred seventy-six".