3180723966 has 108 divisors (see below), whose sum is σ = 8216954928. Its totient is φ = 886231584.

The previous prime is 3180723961. The next prime is 3180723967. The reversal of 3180723966 is 6693270813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3180723961) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 11482620 + ... + 11482896.

It is an arithmetic number, because the mean of its divisors is an integer number (76082916).

Almost surely, 2^3180723966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3180723966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4108477464).

3180723966 is an abundant number, since it is smaller than the sum of its proper divisors (5036230962).

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

3180723966 is a wasteful number, since it uses less digits than its factorization.

3180723966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 3180723966 is about 56397.9074611816. The cubic root of 3180723966 is about 1470.6477417476.

The spelling of 3180723966 in words is "three billion, one hundred eighty million, seven hundred twenty-three thousand, nine hundred sixty-six".