3216765646 has 16 divisors (see below), whose sum is σ = 4850440704. Its totient is φ = 1599974584.

The previous prime is 3216765631. The next prime is 3216765649. The reversal of 3216765646 is 6465676123.

It is a junction number, because it is equal to n+sod(n) for n = 3216765596 and 3216765605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216765649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302211 + ... + 312673.

It is an arithmetic number, because the mean of its divisors is an integer number (303152544).

Almost surely, 2^3216765646 is an apocalyptic number.

3216765646 is a deficient number, since it is larger than the sum of its proper divisors (1633675058).

3216765646 is a wasteful number, since it uses less digits than its factorization.

3216765646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11255.

The product of its digits is 1088640, while the sum is 46.

The square root of 3216765646 is about 56716.5376764132. The cubic root of 3216765646 is about 1476.1816666571.

The spelling of 3216765646 in words is "three billion, two hundred sixteen million, seven hundred sixty-five thousand, six hundred forty-six".