1311645542366 has 16 divisors (see below), whose sum is σ = 2072105400960. Its totient is φ = 620979946200.

The previous prime is 1311645542359. The next prime is 1311645542371. The reversal of 1311645542366 is 6632455461131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311645542366.

It is a congruent number.

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, 8977610 + ... + 9122541.

It is an arithmetic number, because the mean of its divisors is an integer number (129506587560).

Almost surely, 2^{1311645542366} is an apocalyptic number.

1311645542366 is a deficient number, since it is larger than the sum of its proper divisors (760459858594).

1311645542366 is a wasteful number, since it uses less digits than its factorization.

1311645542366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18102079.

The product of its digits is 1555200, while the sum is 47.

The spelling of 1311645542366 in words is "one trillion, three hundred eleven billion, six hundred forty-five million, five hundred forty-two thousand, three hundred sixty-six".