2001514200561 has 6 divisors (see below), whose sum is σ = 2891076067490. Its totient is φ = 1334342800368.

The previous prime is 2001514200557. The next prime is 2001514200571. The reversal of 2001514200561 is 1650024151002.

It can be written as a sum of positive squares in only one way, i.e., 1413140827536 + 588373373025 = 1188756^2 + 767055^2 .

It is not a de Polignac number, because 2001514200561 - 2² = 2001514200557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2001514200551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111195233356 + ... + 111195233373.

Almost surely, 2^{2001514200561} is an apocalyptic number.

It is an amenable number.

2001514200561 is a deficient number, since it is larger than the sum of its proper divisors (889561866929).

2001514200561 is a wasteful number, since it uses less digits than its factorization.

2001514200561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222390466735 (or 222390466732 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 2001514200561 its reverse (1650024151002), we get a palindrome (3651538351563).

The spelling of 2001514200561 in words is "two trillion, one billion, five hundred fourteen million, two hundred thousand, five hundred sixty-one".