3081666516 has 12 divisors (see below), whose sum is σ = 7190555232. Its totient is φ = 1027222168.

The previous prime is 3081666499. The next prime is 3081666521. The reversal of 3081666516 is 6156661803.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 128402760 + ... + 128402783.

It is an arithmetic number, because the mean of its divisors is an integer number (599212936).

Almost surely, 2^3081666516 is an apocalyptic number.

It is an amenable number.

3081666516 is an abundant number, since it is smaller than the sum of its proper divisors (4108888716).

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

3081666516 is a wasteful number, since it uses less digits than its factorization.

3081666516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256805550 (or 256805548 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 3081666516 is about 55512.7599385943. The cubic root of 3081666516 is about 1455.2196368993.

The spelling of 3081666516 in words is "three billion, eighty-one million, six hundred sixty-six thousand, five hundred sixteen".