256966365 has 8 divisors (see below), whose sum is σ = 411146208. Its totient is φ = 137048720.

The previous prime is 256966363. The next prime is 256966397. The reversal of 256966365 is 563669652.

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

It is not a de Polignac number, because 256966365 - 2¹ = 256966363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256966363) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8565531 + ... + 8565560.

It is an arithmetic number, because the mean of its divisors is an integer number (51393276).

Almost surely, 2^256966365 is an apocalyptic number.

It is an amenable number.

256966365 is a deficient number, since it is larger than the sum of its proper divisors (154179843).

256966365 is a wasteful number, since it uses less digits than its factorization.

256966365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17131099.

The product of its digits is 1749600, while the sum is 48.

The square root of 256966365 is about 16030.1704607281. The cubic root of 256966365 is about 635.7583804909.

The spelling of 256966365 in words is "two hundred fifty-six million, nine hundred sixty-six thousand, three hundred sixty-five".