3220663698 has 24 divisors (see below), whose sum is σ = 7974977088. Its totient is φ = 920189592.

The previous prime is 3220663681. The next prime is 3220663729. The reversal of 3220663698 is 8963660223.

3220663698 is a `hidden beast` number, since 3 + 2 + 2 + 0 + 6 + 636 + 9 + 8 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12780286 + ... + 12780537.

It is an arithmetic number, because the mean of its divisors is an integer number (332290712).

Almost surely, 2^3220663698 is an apocalyptic number.

3220663698 is an abundant number, since it is smaller than the sum of its proper divisors (4754313390).

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

3220663698 is a wasteful number, since it uses less digits than its factorization.

3220663698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25560838 (or 25560835 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 3220663698 is about 56750.8916053307. The cubic root of 3220663698 is about 1476.7777011820. Note that the first 4 decimals are identical.

The spelling of 3220663698 in words is "three billion, two hundred twenty million, six hundred sixty-three thousand, six hundred ninety-eight".