3225601666 has 16 divisors (see below), whose sum is σ = 5558258304. Its totient is φ = 1375236864.

The previous prime is 3225601661. The next prime is 3225601711. The reversal of 3225601666 is 6661065223.

It is a super-2 number, since 2×3225601666² = 20809012215403951112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3225601661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594190 + ... + 599593.

It is an arithmetic number, because the mean of its divisors is an integer number (347391144).

Almost surely, 2^3225601666 is an apocalyptic number.

3225601666 is a deficient number, since it is larger than the sum of its proper divisors (2332656638).

3225601666 is a wasteful number, since it uses less digits than its factorization.

3225601666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193985.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 3225601666 is about 56794.3805847022. The cubic root of 3225601666 is about 1477.5320547365.

Adding to 3225601666 its reverse (6661065223), we get a palindrome (9886666889).

The spelling of 3225601666 in words is "three billion, two hundred twenty-five million, six hundred one thousand, six hundred sixty-six".