2005340251105 has 16 divisors (see below), whose sum is σ = 2481701382864. Its totient is φ = 1554436638720.

The previous prime is 2005340251073. The next prime is 2005340251121. The reversal of 2005340251105 is 5011520435002.

It can be written as a sum of positive squares in 8 ways, for example, as 56278547361 + 1949061703744 = 237231^2 + 1396088^2 .

It is not a de Polignac number, because 2005340251105 - 2⁵ = 2005340251073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22444372 + ... + 22533541.

It is an arithmetic number, because the mean of its divisors is an integer number (155106336429).

Almost surely, 2^{2005340251105} is an apocalyptic number.

It is an amenable number.

2005340251105 is a deficient number, since it is larger than the sum of its proper divisors (476361131759).

2005340251105 is a wasteful number, since it uses less digits than its factorization.

2005340251105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44978196.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 2005340251105 its reverse (5011520435002), we get a palindrome (7016860686107).

The spelling of 2005340251105 in words is "two trillion, five billion, three hundred forty million, two hundred fifty-one thousand, one hundred five".