1156560106566 has 16 divisors (see below), whose sum is σ = 2313140042304. Its totient is φ = 385516730664.

The previous prime is 1156560106543. The next prime is 1156560106573. The reversal of 1156560106566 is 6656010656511.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5220 + ... + 1520903.

It is an arithmetic number, because the mean of its divisors is an integer number (144571252644).

Almost surely, 2^{1156560106566} is an apocalyptic number.

1156560106566 is an abundant number, since it is smaller than the sum of its proper divisors (1156579935738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1156560106566 is a wasteful number, since it uses less digits than its factorization.

1156560106566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652435.

The product of its (nonzero) digits is 972000, while the sum is 48.

Subtracting 1156560106566 from its reverse (6656010656511), we obtain a palindrome (5499450549945).

The spelling of 1156560106566 in words is "one trillion, one hundred fifty-six billion, five hundred sixty million, one hundred six thousand, five hundred sixty-six".