261672022116150 has 48 divisors (see below), whose sum is σ = 666485712560784. Its totient is φ = 67893281412480.

The previous prime is 261672022116091. The next prime is 261672022116199. The reversal of 261672022116150 is 51611220276162.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23574050497 + ... + 23574061596.

It is an arithmetic number, because the mean of its divisors is an integer number (13885119011683).

Almost surely, 2^{261672022116150} is an apocalyptic number.

261672022116150 is an abundant number, since it is smaller than the sum of its proper divisors (404813690444634).

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

261672022116150 is a wasteful number, since it uses less digits than its factorization.

261672022116150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47148112145 (or 47148112140 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 261672022116150 in words is "two hundred sixty-one trillion, six hundred seventy-two billion, twenty-two million, one hundred sixteen thousand, one hundred fifty".