2000645111461 has 4 divisors (see below), whose sum is σ = 2000807211232. Its totient is φ = 2000483011692.

The previous prime is 2000645111459. The next prime is 2000645111467. The reversal of 2000645111461 is 1641115460002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2000645111461 - 2¹ = 2000645111459 is a prime.

It is a super-2 number, since 2×2000645111461² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000645111467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81031371 + ... + 81056056.

It is an arithmetic number, because the mean of its divisors is an integer number (500201802808).

Almost surely, 2^{2000645111461} is an apocalyptic number.

It is an amenable number.

2000645111461 is a deficient number, since it is larger than the sum of its proper divisors (162099771).

2000645111461 is a wasteful number, since it uses less digits than its factorization.

2000645111461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162099770.

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 2000645111461 in words is "two trillion, six hundred forty-five million, one hundred eleven thousand, four hundred sixty-one".