261671104113 has 32 divisors (see below), whose sum is σ = 372182501376. Its totient is φ = 162960069888.

The previous prime is 261671104099. The next prime is 261671104159. The reversal of 261671104113 is 311401176162.

It is not a de Polignac number, because 261671104113 - 2⁸ = 261671103857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (261671104813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5794620 + ... + 5839602.

It is an arithmetic number, because the mean of its divisors is an integer number (11630703168).

Almost surely, 2^261671104113 is an apocalyptic number.

It is an amenable number.

261671104113 is a deficient number, since it is larger than the sum of its proper divisors (110511397263).

261671104113 is a wasteful number, since it uses less digits than its factorization.

261671104113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45853.

The product of its (nonzero) digits is 6048, while the sum is 33.

The spelling of 261671104113 in words is "two hundred sixty-one billion, six hundred seventy-one million, one hundred four thousand, one hundred thirteen".