66707677000 has 64 divisors (see below), whose sum is σ = 165278121840. Its totient is φ = 25113472000.

The previous prime is 66707676989. The next prime is 66707677021. The reversal of 66707677000 is 77670766.

It can be written as a sum of positive squares in 8 ways, for example, as 10984297636 + 55723379364 = 104806^2 + 236058^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1944991 + ... + 1978990.

Almost surely, 2^66707677000 is an apocalyptic number.

It is an amenable number.

66707677000 is an abundant number, since it is smaller than the sum of its proper divisors (98570444840).

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

66707677000 is a wasteful number, since it uses less digits than its factorization.

66707677000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924019 (or 3924005 counting only the distinct ones).

The product of its (nonzero) digits is 518616, while the sum is 46.

The spelling of 66707677000 in words is "sixty-six billion, seven hundred seven million, six hundred seventy-seven thousand".