3216650644 has 12 divisors (see below), whose sum is σ = 5810723968. Its totient is φ = 1556443800.

The previous prime is 3216650603. The next prime is 3216650651. The reversal of 3216650644 is 4460566123.

It is a super-2 number, since 2×3216650644² = 20693682731091229472, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12970242 + ... + 12970489.

Almost surely, 2^3216650644 is an apocalyptic number.

It is an amenable number.

3216650644 is a deficient number, since it is larger than the sum of its proper divisors (2594073324).

3216650644 is a wasteful number, since it uses less digits than its factorization.

3216650644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25940766 (or 25940764 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 3216650644 is about 56715.5238360715. The cubic root of 3216650644 is about 1476.1640748806.

The spelling of 3216650644 in words is "three billion, two hundred sixteen million, six hundred fifty thousand, six hundred forty-four".