1345265131566 has 8 divisors (see below), whose sum is σ = 2690530263144. Its totient is φ = 448421710520.

The previous prime is 1345265131543. The next prime is 1345265131571. The reversal of 1345265131566 is 6651315625431.

It is a sphenic number, since it is the product of 3 distinct primes.

1345265131566 is an admirable number.

It is a super-3 number, since 3×1345265131566³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 3 ways as a sum of consecutive naturals, for example, 112105427625 + ... + 112105427636.

It is an arithmetic number, because the mean of its divisors is an integer number (336316282893).

Almost surely, 2^{1345265131566} is an apocalyptic number.

1345265131566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1345265131566 is a wasteful number, since it uses less digits than its factorization.

1345265131566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224210855266.

The product of its digits is 1944000, while the sum is 48.

The spelling of 1345265131566 in words is "one trillion, three hundred forty-five billion, two hundred sixty-five million, one hundred thirty-one thousand, five hundred sixty-six".