1666734877132 has 12 divisors (see below), whose sum is σ = 3141154191616. Its totient is φ = 769262250960.

The previous prime is 1666734877117. The next prime is 1666734877151. The reversal of 1666734877132 is 2317784376661.

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 3 ways as a sum of consecutive naturals, for example, 16026296844 + ... + 16026296947.

Almost surely, 2^{1666734877132} is an apocalyptic number.

It is an amenable number.

1666734877132 is a deficient number, since it is larger than the sum of its proper divisors (1474419314484).

1666734877132 is a wasteful number, since it uses less digits than its factorization.

1666734877132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32052593808 (or 32052593806 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 61.

The spelling of 1666734877132 in words is "one trillion, six hundred sixty-six billion, seven hundred thirty-four million, eight hundred seventy-seven thousand, one hundred thirty-two".