2001136602 has 16 divisors (see below), whose sum is σ = 4003686720. Its totient is φ = 666809952.

The previous prime is 2001136573. The next prime is 2001136649. The reversal of 2001136602 is 2066311002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40027 + ... + 74862.

It is an arithmetic number, because the mean of its divisors is an integer number (250230420).

Almost surely, 2^2001136602 is an apocalyptic number.

2001136602 is an abundant number, since it is smaller than the sum of its proper divisors (2002550118).

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

2001136602 is a wasteful number, since it uses less digits than its factorization.

2001136602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117797.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2001136602 is about 44734.0653417505. The cubic root of 2001136602 is about 1260.1596761609.

Adding to 2001136602 its reverse (2066311002), we get a palindrome (4067447604).

The spelling of 2001136602 in words is "two billion, one million, one hundred thirty-six thousand, six hundred two".