3668656885 has 16 divisors (see below), whose sum is σ = 4479854400. Its totient is φ = 2883718656.

The previous prime is 3668656879. The next prime is 3668656889. The reversal of 3668656885 is 5886568663.

It is a cyclic number.

It is not a de Polignac number, because 3668656885 - 2³ = 3668656877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3668656889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40206 + ... + 94624.

It is an arithmetic number, because the mean of its divisors is an integer number (279990900).

Almost surely, 2^3668656885 is an apocalyptic number.

It is an amenable number.

3668656885 is a deficient number, since it is larger than the sum of its proper divisors (811197515).

3668656885 is a wasteful number, since it uses less digits than its factorization.

3668656885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54660.

The product of its digits is 49766400, while the sum is 61.

The square root of 3668656885 is about 60569.4385395803. The cubic root of 3668656885 is about 1542.3006156095.

The spelling of 3668656885 in words is "three billion, six hundred sixty-eight million, six hundred fifty-six thousand, eight hundred eighty-five".