2001500020001 has 8 divisors (see below), whose sum is σ = 2083219826880. Its totient is φ = 1920627050832.

The previous prime is 2001500019991. The next prime is 2001500020007. The reversal of 2001500020001 is 1000200051002.

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 2001500020001 - 2¹⁴ = 2001500003617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001500020007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211704605 + ... + 211714058.

It is an arithmetic number, because the mean of its divisors is an integer number (260402478360).

Almost surely, 2^{2001500020001} is an apocalyptic number.

It is an amenable number.

2001500020001 is a deficient number, since it is larger than the sum of its proper divisors (81719806879).

2001500020001 is a wasteful number, since it uses less digits than its factorization.

2001500020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423418855.

The product of its (nonzero) digits is 20, while the sum is 11.

Adding to 2001500020001 its reverse (1000200051002), we get a palindrome (3001700071003).

The spelling of 2001500020001 in words is "two trillion, one billion, five hundred million, twenty thousand, one".