2001685333687 has 12 divisors (see below), whose sum is σ = 2191579211640. Its totient is φ = 1817419174560.

The previous prime is 2001685333679. The next prime is 2001685333727. The reversal of 2001685333687 is 7863335861002.

It is not a de Polignac number, because 2001685333687 - 2³ = 2001685333679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001685333657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20641737 + ... + 20738482.

It is an arithmetic number, because the mean of its divisors is an integer number (182631600970).

Almost surely, 2^{2001685333687} is an apocalyptic number.

2001685333687 is a deficient number, since it is larger than the sum of its proper divisors (189893877953).

2001685333687 is an equidigital number, since it uses as much as digits as its factorization.

2001685333687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41380354 (or 41380293 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 2001685333687 in words is "two trillion, one billion, six hundred eighty-five million, three hundred thirty-three thousand, six hundred eighty-seven".