2000001668687 has 8 divisors (see below), whose sum is σ = 2203002721920. Its totient is φ = 1800531068760.

The previous prime is 2000001668611. The next prime is 2000001668723. The reversal of 2000001668687 is 7868661000002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2000001668687 - 2¹⁴ = 2000001652303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000001668087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882612137 + ... + 882614402.

It is an arithmetic number, because the mean of its divisors is an integer number (275375340240).

Almost surely, 2^{2000001668687} is an apocalyptic number.

2000001668687 is a deficient number, since it is larger than the sum of its proper divisors (203001053233).

2000001668687 is a wasteful number, since it uses less digits than its factorization.

2000001668687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765226653.

The product of its (nonzero) digits is 193536, while the sum is 44.

Adding to 2000001668687 its reverse (7868661000002), we get a palindrome (9868662668689).

The spelling of 2000001668687 in words is "two trillion, one million, six hundred sixty-eight thousand, six hundred eighty-seven".