3161718616 has 64 divisors (see below), whose sum is σ = 7182535680. Its totient is φ = 1273735680.

The previous prime is 3161718587. The next prime is 3161718631. The reversal of 3161718616 is 6168171613.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1048551 + ... + 1051561.

It is an arithmetic number, because the mean of its divisors is an integer number (112227120).

Almost surely, 2^3161718616 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 3161718616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3591267840).

3161718616 is an abundant number, since it is smaller than the sum of its proper divisors (4020817064).

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

3161718616 is a wasteful number, since it uses less digits than its factorization.

3161718616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4144 (or 4140 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 3161718616 is about 56229.1616156599. The cubic root of 3161718616 is about 1467.7127674189.

The spelling of 3161718616 in words is "three billion, one hundred sixty-one million, seven hundred eighteen thousand, six hundred sixteen".