581170668 has 96 divisors (see below), whose sum is σ = 1497612480. Its totient is φ = 174320640.

The previous prime is 581170559. The next prime is 581170673. The reversal of 581170668 is 866071185.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1493818 + ... + 1494206.

It is an arithmetic number, because the mean of its divisors is an integer number (15600130).

Almost surely, 2^581170668 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 581170668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748806240).

581170668 is an abundant number, since it is smaller than the sum of its proper divisors (916441812).

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

581170668 is a wasteful number, since it uses less digits than its factorization.

581170668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 581170668 is about 24107.4815773029. The cubic root of 581170668 is about 834.5157975360.

The spelling of 581170668 in words is "five hundred eighty-one million, one hundred seventy thousand, six hundred sixty-eight".