3568666946 has 16 divisors (see below), whose sum is σ = 5920575864. Its totient is φ = 1602561024.

The previous prime is 3568666931. The next prime is 3568666987. The reversal of 3568666946 is 6496668653.

It can be written as a sum of positive squares in 4 ways, for example, as 3529666921 + 39000025 = 59411^2 + 6245^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1853855 + ... + 1855778.

Almost surely, 2^3568666946 is an apocalyptic number.

3568666946 is a deficient number, since it is larger than the sum of its proper divisors (2351908918).

3568666946 is a wasteful number, since it uses less digits than its factorization.

3568666946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709685.

The product of its digits is 33592320, while the sum is 59.

The square root of 3568666946 is about 59738.3205823532. The cubic root of 3568666946 is about 1528.1594547852.

The spelling of 3568666946 in words is "three billion, five hundred sixty-eight million, six hundred sixty-six thousand, nine hundred forty-six".