261136466516204 has 12 divisors (see below), whose sum is σ = 476857895377584. Its totient is φ = 124891353551184.

The previous prime is 261136466516203. The next prime is 261136466516279. The reversal of 261136466516204 is 402615664631162.

It is not an unprimeable number, because it can be changed into a prime (261136466516203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1419219926627 + ... + 1419219926810.

It is an arithmetic number, because the mean of its divisors is an integer number (39738157948132).

Almost surely, 2^{261136466516204} is an apocalyptic number.

It is an amenable number.

261136466516204 is a deficient number, since it is larger than the sum of its proper divisors (215721428861380).

261136466516204 is a wasteful number, since it uses less digits than its factorization.

261136466516204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838439853464 (or 2838439853462 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 53.

The spelling of 261136466516204 in words is "two hundred sixty-one trillion, one hundred thirty-six billion, four hundred sixty-six million, five hundred sixteen thousand, two hundred four".