2006635653 has 32 divisors (see below), whose sum is σ = 3322166400. Its totient is φ = 1186473600.

The previous prime is 2006635637. The next prime is 2006635717. The reversal of 2006635653 is 3565366002.

It is not a de Polignac number, because 2006635653 - 2⁴ = 2006635637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006633653) 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 31 ways as a sum of consecutive naturals, for example, 70218 + ... + 94571.

It is an arithmetic number, because the mean of its divisors is an integer number (103817700).

Almost surely, 2^2006635653 is an apocalyptic number.

It is an amenable number.

2006635653 is a deficient number, since it is larger than the sum of its proper divisors (1315530747).

2006635653 is a wasteful number, since it uses less digits than its factorization.

2006635653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164850 (or 164844 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The square root of 2006635653 is about 44795.4869713457. The cubic root of 2006635653 is about 1261.3129115252.

The spelling of 2006635653 in words is "two billion, six million, six hundred thirty-five thousand, six hundred fifty-three".