2001060656 has 20 divisors (see below), whose sum is σ = 4430920272. Its totient is φ = 857597376.

The previous prime is 2001060629. The next prime is 2001060679. The reversal of 2001060656 is 6560601002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8933195 + ... + 8933418.

Almost surely, 2^2001060656 is an apocalyptic number.

It is an amenable number.

2001060656 is an abundant number, since it is smaller than the sum of its proper divisors (2429859616).

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

2001060656 is a wasteful number, since it uses less digits than its factorization.

2001060656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17866628 (or 17866622 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2001060656 is about 44733.2164727733. The cubic root of 2001060656 is about 1260.1437343378.

Adding to 2001060656 its reverse (6560601002), we get a palindrome (8561661658).

The spelling of 2001060656 in words is "two billion, one million, sixty thousand, six hundred fifty-six".