1206666679583 has 16 divisors (see below), whose sum is σ = 1223544250656. Its totient is φ = 1189906099200.

The previous prime is 1206666679579. The next prime is 1206666679607. The reversal of 1206666679583 is 3859766666021.

It is a cyclic number.

It is not a de Polignac number, because 1206666679583 - 2² = 1206666679579 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 (1206666679783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34236416 + ... + 34271642.

It is an arithmetic number, because the mean of its divisors is an integer number (76471515666).

Almost surely, 2^{1206666679583} is an apocalyptic number.

1206666679583 is a deficient number, since it is larger than the sum of its proper divisors (16877571073).

1206666679583 is a wasteful number, since it uses less digits than its factorization.

1206666679583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36874.

The product of its (nonzero) digits is 117573120, while the sum is 65.

The spelling of 1206666679583 in words is "one trillion, two hundred six billion, six hundred sixty-six million, six hundred seventy-nine thousand, five hundred eighty-three".