261254550361341 has 16 divisors (see below), whose sum is σ = 348586364081088. Its totient is φ = 174046220448000.

The previous prime is 261254550361339. The next prime is 261254550361369. The reversal of 261254550361341 is 143163055452162.

It is a happy number.

It is not a de Polignac number, because 261254550361341 - 2¹ = 261254550361339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261254550361331) 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, 902722501 + ... + 903011861.

It is an arithmetic number, because the mean of its divisors is an integer number (21786647755068).

Almost surely, 2^{261254550361341} is an apocalyptic number.

It is an amenable number.

261254550361341 is a deficient number, since it is larger than the sum of its proper divisors (87331813719747).

261254550361341 is a wasteful number, since it uses less digits than its factorization.

261254550361341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501692.

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 261254550361341 in words is "two hundred sixty-one trillion, two hundred fifty-four billion, five hundred fifty million, three hundred sixty-one thousand, three hundred forty-one".