3218861116 has 24 divisors (see below), whose sum is σ = 5669637120. Its totient is φ = 1598986800.

The previous prime is 3218861089. The next prime is 3218861123. The reversal of 3218861116 is 6111688123.

It is a super-2 number, since 2×3218861116² = 20722133768193530912, which contains 22 as substring.

It is a congruent number.

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, 739675 + ... + 744013.

It is an arithmetic number, because the mean of its divisors is an integer number (236234880).

Almost surely, 2^3218861116 is an apocalyptic number.

It is an amenable number.

3218861116 is a deficient number, since it is larger than the sum of its proper divisors (2450776004).

3218861116 is a wasteful number, since it uses less digits than its factorization.

3218861116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505 (or 5503 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The square root of 3218861116 is about 56735.0078522952. The cubic root of 3218861116 is about 1476.5021358593.

The spelling of 3218861116 in words is "three billion, two hundred eighteen million, eight hundred sixty-one thousand, one hundred sixteen".