2611501613255 has 4 divisors (see below), whose sum is σ = 3133801935912. Its totient is φ = 2089201290600.

The previous prime is 2611501613221. The next prime is 2611501613309. The reversal of 2611501613255 is 5523161051162.

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

It is not a de Polignac number, because 2611501613255 - 2⁸ = 2611501612999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261150161321 + ... + 261150161330.

It is an arithmetic number, because the mean of its divisors is an integer number (783450483978).

Almost surely, 2^{2611501613255} is an apocalyptic number.

2611501613255 is a deficient number, since it is larger than the sum of its proper divisors (522300322657).

2611501613255 is an equidigital number, since it uses as much as digits as its factorization.

2611501613255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522300322656.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 2611501613255 in words is "two trillion, six hundred eleven billion, five hundred one million, six hundred thirteen thousand, two hundred fifty-five".