66965827876 has 24 divisors (see below), whose sum is σ = 121055857664. Its totient is φ = 32379963840.

The previous prime is 66965827847. The next prime is 66965827889. The reversal of 66965827876 is 67872856966.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13305 + ... + 366208.

Almost surely, 2^66965827876 is an apocalyptic number.

It is an amenable number.

66965827876 is a deficient number, since it is larger than the sum of its proper divisors (54090029788).

66965827876 is a wasteful number, since it uses less digits than its factorization.

66965827876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380971 (or 380969 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 70.

The spelling of 66965827876 in words is "sixty-six billion, nine hundred sixty-five million, eight hundred twenty-seven thousand, eight hundred seventy-six".