261055259092110 has 64 divisors (see below), whose sum is σ = 735389641078272. Its totient is φ = 58057076923776.

The previous prime is 261055259092093. The next prime is 261055259092207. The reversal of 261055259092110 is 11290952550162.

It is a self number, because there is not a number n which added to its sum of digits gives 261055259092110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16798914952 + ... + 16798930491.

It is an arithmetic number, because the mean of its divisors is an integer number (11490463141848).

Almost surely, 2^{261055259092110} is an apocalyptic number.

261055259092110 is an abundant number, since it is smaller than the sum of its proper divisors (474334381986162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261055259092110 is a wasteful number, since it uses less digits than its factorization.

261055259092110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33597845497.

The product of its (nonzero) digits is 486000, while the sum is 48.

The spelling of 261055259092110 in words is "two hundred sixty-one trillion, fifty-five billion, two hundred fifty-nine million, ninety-two thousand, one hundred ten".