2605066515155 has 16 divisors (see below), whose sum is σ = 3393055755264. Its totient is φ = 1908593850240.

The previous prime is 2605066515137. The next prime is 2605066515173. The reversal of 2605066515155 is 5515156605062.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2605066515137) and next prime (2605066515173).

It is not a de Polignac number, because 2605066515155 - 2¹² = 2605066511059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 157778936 + ... + 157795445.

It is an arithmetic number, because the mean of its divisors is an integer number (212065984704).

Almost surely, 2^{2605066515155} is an apocalyptic number.

2605066515155 is a deficient number, since it is larger than the sum of its proper divisors (787989240109).

2605066515155 is a wasteful number, since it uses less digits than its factorization.

2605066515155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315574526.

The product of its (nonzero) digits is 1350000, while the sum is 47.

The spelling of 2605066515155 in words is "two trillion, six hundred five billion, sixty-six million, five hundred fifteen thousand, one hundred fifty-five".