66750885676 has 12 divisors (see below), whose sum is σ = 117021538872. Its totient is φ = 33316160288.

The previous prime is 66750885673. The next prime is 66750885743. The reversal of 66750885676 is 67658805766.

It is not an unprimeable number, because it can be changed into a prime (66750885673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14818105 + ... + 14822608.

It is an arithmetic number, because the mean of its divisors is an integer number (9751794906).

Almost surely, 2^66750885676 is an apocalyptic number.

It is an amenable number.

66750885676 is a deficient number, since it is larger than the sum of its proper divisors (50270653196).

66750885676 is a wasteful number, since it uses less digits than its factorization.

66750885676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29641280 (or 29641278 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 64.

The spelling of 66750885676 in words is "sixty-six billion, seven hundred fifty million, eight hundred eighty-five thousand, six hundred seventy-six".