2105152105515 has 16 divisors (see below), whose sum is σ = 3566375332128. Its totient is φ = 1056703801856.

The previous prime is 2105152105513. The next prime is 2105152105517. The reversal of 2105152105515 is 5155012515012.

It is an interprime number because it is at equal distance from previous prime (2105152105513) and next prime (2105152105517).

It is not a de Polignac number, because 2105152105515 - 2¹ = 2105152105513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105152105513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4127748972 + ... + 4127749481.

It is an arithmetic number, because the mean of its divisors is an integer number (222898458258).

Almost surely, 2^{2105152105515} is an apocalyptic number.

2105152105515 is a deficient number, since it is larger than the sum of its proper divisors (1461223226613).

2105152105515 is a wasteful number, since it uses less digits than its factorization.

2105152105515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8255498478.

The product of its (nonzero) digits is 12500, while the sum is 33.

The spelling of 2105152105515 in words is "two trillion, one hundred five billion, one hundred fifty-two million, one hundred five thousand, five hundred fifteen".