2005515434051 has 4 divisors (see below), whose sum is σ = 2014273143600. Its totient is φ = 1996757724504.

The previous prime is 2005515434033. The next prime is 2005515434053. The reversal of 2005515434051 is 1504345155002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2005515434051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005515434053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4378854431 + ... + 4378854888.

It is an arithmetic number, because the mean of its divisors is an integer number (503568285900).

Almost surely, 2^{2005515434051} is an apocalyptic number.

2005515434051 is a deficient number, since it is larger than the sum of its proper divisors (8757709549).

2005515434051 is an equidigital number, since it uses as much as digits as its factorization.

2005515434051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8757709548.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 2005515434051 in words is "two trillion, five billion, five hundred fifteen million, four hundred thirty-four thousand, fifty-one".