261646244226332 has 24 divisors (see below), whose sum is σ = 523616910420576. Its totient is φ = 112064585675328.

The previous prime is 261646244226271. The next prime is 261646244226379. The reversal of 261646244226332 is 233622442646162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2896578743 + ... + 2896669070.

It is an arithmetic number, because the mean of its divisors is an integer number (21817371267524).

Almost surely, 2^{261646244226332} is an apocalyptic number.

It is an amenable number.

261646244226332 is an abundant number, since it is smaller than the sum of its proper divisors (261970666194244).

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

261646244226332 is a wasteful number, since it uses less digits than its factorization.

261646244226332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5793249437 (or 5793249435 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 53.

The spelling of 261646244226332 in words is "two hundred sixty-one trillion, six hundred forty-six billion, two hundred forty-four million, two hundred twenty-six thousand, three hundred thirty-two".