2001065660011 has 16 divisors (see below), whose sum is σ = 2189560209408. Its totient is φ = 1813671518400.

The previous prime is 2001065659933. The next prime is 2001065660071. The reversal of 2001065660011 is 1100665601002.

It is a cyclic number.

It is not a de Polignac number, because 2001065660011 - 2¹⁹ = 2001065135723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001065660071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10526770 + ... + 10715176.

It is an arithmetic number, because the mean of its divisors is an integer number (136847513088).

Almost surely, 2^{2001065660011} is an apocalyptic number.

2001065660011 is a deficient number, since it is larger than the sum of its proper divisors (188494549397).

2001065660011 is a wasteful number, since it uses less digits than its factorization.

2001065660011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191322.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 2001065660011 in words is "two trillion, one billion, sixty-five million, six hundred sixty thousand, eleven".