3581665704 has 48 divisors (see below), whose sum is σ = 9705395700. Its totient is φ = 1193266944.

The previous prime is 3581665697. The next prime is 3581665721. The reversal of 3581665704 is 4075661853.

3581665704 is a `hidden beast` number, since 3 + 581 + 6 + 65 + 7 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3404722500 + 176943204 = 58350^2 + 13302^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3581665704.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138502 + ... + 162314.

Almost surely, 2^3581665704 is an apocalyptic number.

It is an amenable number.

3581665704 is an abundant number, since it is smaller than the sum of its proper divisors (6123729996).

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

3581665704 is a wasteful number, since it uses less digits than its factorization.

3581665704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25914 (or 25907 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 3581665704 is about 59847.0191738904. The cubic root of 3581665704 is about 1530.0126309351.

The spelling of 3581665704 in words is "three billion, five hundred eighty-one million, six hundred sixty-five thousand, seven hundred four".