1966702212677 has 8 divisors (see below), whose sum is σ = 1985357458656. Its totient is φ = 1948052056752.

The previous prime is 1966702212583. The next prime is 1966702212703. The reversal of 1966702212677 is 7762122076691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1966702212677 - 2¹⁴ = 1966702196293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966702212577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493838 + ... + 2043839.

It is an arithmetic number, because the mean of its divisors is an integer number (248169682332).

Almost surely, 2^{1966702212677} is an apocalyptic number.

It is an amenable number.

1966702212677 is a deficient number, since it is larger than the sum of its proper divisors (18655245979).

1966702212677 is a wasteful number, since it uses less digits than its factorization.

1966702212677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545027.

The product of its (nonzero) digits is 5334336, while the sum is 56.

The spelling of 1966702212677 in words is "one trillion, nine hundred sixty-six billion, seven hundred two million, two hundred twelve thousand, six hundred seventy-seven".