261676012054255 has 16 divisors (see below), whose sum is σ = 322977198855744. Its totient is φ = 203380300569600.

The previous prime is 261676012054253. The next prime is 261676012054267. The reversal of 261676012054255 is 552450210676162.

It is a happy number.

It is not a de Polignac number, because 261676012054255 - 2¹ = 261676012054253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261676012054253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1050740971 + ... + 1050989980.

It is an arithmetic number, because the mean of its divisors is an integer number (20186074928484).

Almost surely, 2^{261676012054255} is an apocalyptic number.

261676012054255 is a deficient number, since it is larger than the sum of its proper divisors (61301186801489).

261676012054255 is a wasteful number, since it uses less digits than its factorization.

261676012054255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101731666.

The product of its (nonzero) digits is 6048000, while the sum is 52.

The spelling of 261676012054255 in words is "two hundred sixty-one trillion, six hundred seventy-six billion, twelve million, fifty-four thousand, two hundred fifty-five".