1566111070343 has 4 divisors (see below), whose sum is σ = 1566114799008. Its totient is φ = 1566107341680.

The previous prime is 1566111070331. The next prime is 1566111070393. The reversal of 1566111070343 is 3430701116651.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1566111070343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1566111070297 and 1566111070306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1566111070393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140671 + ... + 2105552.

It is an arithmetic number, because the mean of its divisors is an integer number (391528699752).

Almost surely, 2^{1566111070343} is an apocalyptic number.

1566111070343 is a deficient number, since it is larger than the sum of its proper divisors (3728665).

1566111070343 is an equidigital number, since it uses as much as digits as its factorization.

1566111070343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728664.

The product of its (nonzero) digits is 45360, while the sum is 38.

Adding to 1566111070343 its reverse (3430701116651), we get a palindrome (4996812186994).

The spelling of 1566111070343 in words is "one trillion, five hundred sixty-six billion, one hundred eleven million, seventy thousand, three hundred forty-three".