1350256656565 has 16 divisors (see below), whose sum is σ = 1690806233088. Its totient is φ = 1033209277056.

The previous prime is 1350256656563. The next prime is 1350256656569. The reversal of 1350256656565 is 5656566520531.

It is a cyclic number.

It is not a de Polignac number, because 1350256656565 - 2¹ = 1350256656563 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1350256656563) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4203244 + ... + 4513066.

It is an arithmetic number, because the mean of its divisors is an integer number (105675389568).

Almost surely, 2^{1350256656565} is an apocalyptic number.

It is an amenable number.

1350256656565 is a deficient number, since it is larger than the sum of its proper divisors (340549576523).

1350256656565 is a wasteful number, since it uses less digits than its factorization.

1350256656565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347748.

The product of its (nonzero) digits is 24300000, while the sum is 55.

The spelling of 1350256656565 in words is "one trillion, three hundred fifty billion, two hundred fifty-six million, six hundred fifty-six thousand, five hundred sixty-five".