1345242145665 has 32 divisors (see below), whose sum is σ = 2371307156352. Its totient is φ = 645780800000.

The previous prime is 1345242145633. The next prime is 1345242145679. The reversal of 1345242145665 is 5665412425431.

It is not a de Polignac number, because 1345242145665 - 2⁵ = 1345242145633 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 40344636 + ... + 40377965.

It is an arithmetic number, because the mean of its divisors is an integer number (74103348636).

Almost surely, 2^{1345242145665} is an apocalyptic number.

1345242145665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1345242145665 is a deficient number, since it is larger than the sum of its proper divisors (1026065010687).

1345242145665 is a wasteful number, since it uses less digits than its factorization.

1345242145665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80722721.

The product of its digits is 3456000, while the sum is 48.

The spelling of 1345242145665 in words is "one trillion, three hundred forty-five billion, two hundred forty-two million, one hundred forty-five thousand, six hundred sixty-five".