3603036661 has 16 divisors (see below), whose sum is σ = 4415178240. Its totient is φ = 2869850880.

The previous prime is 3603036631. The next prime is 3603036667. The reversal of 3603036661 is 1666303063.

It is a cyclic number.

It is not a de Polignac number, because 3603036661 - 2⁵ = 3603036629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3603036667) 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, 182230 + ... + 201031.

It is an arithmetic number, because the mean of its divisors is an integer number (275948640).

Almost surely, 2^3603036661 is an apocalyptic number.

It is an amenable number.

3603036661 is a deficient number, since it is larger than the sum of its proper divisors (812141579).

3603036661 is a wasteful number, since it uses less digits than its factorization.

3603036661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383364.

The product of its (nonzero) digits is 34992, while the sum is 34.

The square root of 3603036661 is about 60025.3001741766. The cubic root of 3603036661 is about 1533.0496736722.

The spelling of 3603036661 in words is "three billion, six hundred three million, thirty-six thousand, six hundred sixty-one".