3161662216 has 8 divisors (see below), whose sum is σ = 5928116670. Its totient is φ = 1580831104.

The previous prime is 3161662213. The next prime is 3161662241. The reversal of 3161662216 is 6122661613.

It can be written as a sum of positive squares in only one way, i.e., 3137120100 + 24542116 = 56010^2 + 4954^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×3161662216² = 19992215936164061312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3161662213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197603881 + ... + 197603896.

Almost surely, 2^3161662216 is an apocalyptic number.

It is an amenable number.

3161662216 is a deficient number, since it is larger than the sum of its proper divisors (2766454454).

3161662216 is a wasteful number, since it uses less digits than its factorization.

3161662216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395207783 (or 395207779 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 3161662216 is about 56228.6600942971. The cubic root of 3161662216 is about 1467.7040401514.

The spelling of 3161662216 in words is "three billion, one hundred sixty-one million, six hundred sixty-two thousand, two hundred sixteen".