1345265660566 has 32 divisors (see below), whose sum is σ = 2089745985600. Its totient is φ = 648734486400.

The previous prime is 1345265660503. The next prime is 1345265660573. The reversal of 1345265660566 is 6650665625431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388466551 + ... + 388470013.

It is an arithmetic number, because the mean of its divisors is an integer number (65304562050).

Almost surely, 2^{1345265660566} is an apocalyptic number.

1345265660566 is a deficient number, since it is larger than the sum of its proper divisors (744480325034).

1345265660566 is a wasteful number, since it uses less digits than its factorization.

1345265660566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8824.

The product of its (nonzero) digits is 23328000, while the sum is 55.

The spelling of 1345265660566 in words is "one trillion, three hundred forty-five billion, two hundred sixty-five million, six hundred sixty thousand, five hundred sixty-six".