3644561606 has 8 divisors (see below), whose sum is σ = 6247819920. Its totient is φ = 1561954968.

The previous prime is 3644561603. The next prime is 3644561633. The reversal of 3644561606 is 6061654463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644561603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130162901 + ... + 130162928.

It is an arithmetic number, because the mean of its divisors is an integer number (780977490).

Almost surely, 2^3644561606 is an apocalyptic number.

3644561606 is a deficient number, since it is larger than the sum of its proper divisors (2603258314).

3644561606 is a wasteful number, since it uses less digits than its factorization.

3644561606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260325838.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 3644561606 is about 60370.2046211540. The cubic root of 3644561606 is about 1538.9166505069.

The spelling of 3644561606 in words is "three billion, six hundred forty-four million, five hundred sixty-one thousand, six hundred six".