261536055341 has 8 divisors (see below), whose sum is σ = 288923606400. Its totient is φ = 234750428640.

The previous prime is 261536055301. The next prime is 261536055367. The reversal of 261536055341 is 143550635162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 261536055341 - 2²² = 261531861037 is a prime.

It is a super-2 number, since 2×261536055341² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261536055301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150480176 + ... + 150481913.

It is an arithmetic number, because the mean of its divisors is an integer number (36115450800).

Almost surely, 2^261536055341 is an apocalyptic number.

It is an amenable number.

261536055341 is a deficient number, since it is larger than the sum of its proper divisors (27387551059).

261536055341 is a wasteful number, since it uses less digits than its factorization.

261536055341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300962179.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 261536055341 in words is "two hundred sixty-one billion, five hundred thirty-six million, fifty-five thousand, three hundred forty-one".