2005015302643 has 4 divisors (see below), whose sum is σ = 2008286127568. Its totient is φ = 2001744477720.

The previous prime is 2005015302613. The next prime is 2005015302673. The reversal of 2005015302643 is 3462035105002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2005015302613) and next prime (2005015302673).

It is a cyclic number.

It is not a de Polignac number, because 2005015302643 - 2²¹ = 2005013205491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005015302613) 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, 1635411543 + ... + 1635412768.

It is an arithmetic number, because the mean of its divisors is an integer number (502071531892).

Almost surely, 2^{2005015302643} is an apocalyptic number.

2005015302643 is a deficient number, since it is larger than the sum of its proper divisors (3270824925).

2005015302643 is an equidigital number, since it uses as much as digits as its factorization.

2005015302643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270824924.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 2005015302643 in words is "two trillion, five billion, fifteen million, three hundred two thousand, six hundred forty-three".