3216956576 has 48 divisors (see below), whose sum is σ = 6688150560. Its totient is φ = 1518923520.

The previous prime is 3216956569. The next prime is 3216956581. The reversal of 3216956576 is 6756596123.

It is a happy number.

It is a super-2 number, since 2×3216956576² = 20697619223739287552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184391 + ... + 201081.

It is an arithmetic number, because the mean of its divisors is an integer number (139336470).

Almost surely, 2^3216956576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3216956576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3344075280).

3216956576 is an abundant number, since it is smaller than the sum of its proper divisors (3471193984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3216956576 is a wasteful number, since it uses less digits than its factorization.

3216956576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17037 (or 17029 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 50.

The square root of 3216956576 is about 56718.2208465675. The cubic root of 3216956576 is about 1476.2108721615.

The spelling of 3216956576 in words is "three billion, two hundred sixteen million, nine hundred fifty-six thousand, five hundred seventy-six".