3900216556 has 12 divisors (see below), whose sum is σ = 6825908992. Its totient is φ = 1949956848.

The previous prime is 3900216533. The next prime is 3900216571. The reversal of 3900216556 is 6556120093.

3900216556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3900216556² = 30423378367393002272, which contains 22 as substring.

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, 36181 + ... + 95443.

Almost surely, 2^3900216556 is an apocalyptic number.

It is an amenable number.

3900216556 is a deficient number, since it is larger than the sum of its proper divisors (2925692436).

3900216556 is a wasteful number, since it uses less digits than its factorization.

3900216556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75720 (or 75718 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 3900216556 is about 62451.7137955397. The cubic root of 3900216556 is about 1574.0900504799.

The spelling of 3900216556 in words is "three billion, nine hundred million, two hundred sixteen thousand, five hundred fifty-six".