2006635652 has 72 divisors (see below), whose sum is σ = 4243843800. Its totient is φ = 827076096.

The previous prime is 2006635637. The next prime is 2006635717. The reversal of 2006635652 is 2565366002.

It can be written as a sum of positive squares in 4 ways, for example, as 152127556 + 1854508096 = 12334^2 + 43064^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 643874 + ... + 646982.

It is an arithmetic number, because the mean of its divisors is an integer number (58942275).

Almost surely, 2^2006635652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2006635652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2121921900).

2006635652 is an abundant number, since it is smaller than the sum of its proper divisors (2237208148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2006635652 is a wasteful number, since it uses less digits than its factorization.

2006635652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253 (or 3244 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 2006635652 is about 44795.4869601838. The cubic root of 2006635652 is about 1261.3129113157.

The spelling of 2006635652 in words is "two billion, six million, six hundred thirty-five thousand, six hundred fifty-two".