3001256665 has 64 divisors (see below), whose sum is σ = 4154561280. Its totient is φ = 2061987840.

The previous prime is 3001256659. The next prime is 3001256693. The reversal of 3001256665 is 5666521003.

It is a de Polignac number, because none of the positive numbers 2^k-3001256665 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3001256665.

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 63 ways as a sum of consecutive naturals, for example, 13221282 + ... + 13221508.

It is an arithmetic number, because the mean of its divisors is an integer number (64915020).

Almost surely, 2^3001256665 is an apocalyptic number.

It is an amenable number.

3001256665 is a deficient number, since it is larger than the sum of its proper divisors (1153304615).

3001256665 is a wasteful number, since it uses less digits than its factorization.

3001256665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 3001256665 is about 54783.7262788869. The cubic root of 3001256665 is about 1442.4509227016.

Adding to 3001256665 its reverse (5666521003), we get a palindrome (8667777668).

The spelling of 3001256665 in words is "three billion, one million, two hundred fifty-six thousand, six hundred sixty-five".