261196236096 has 112 divisors (see below), whose sum is σ = 713643480000. Its totient is φ = 84260155392.

The previous prime is 261196236089. The next prime is 261196236107. The reversal of 261196236096 is 690632691162.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754780 + ... + 1045028.

Almost surely, 2^261196236096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 261196236096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356821740000).

261196236096 is an abundant number, since it is smaller than the sum of its proper divisors (452447243904).

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

261196236096 is a wasteful number, since it uses less digits than its factorization.

261196236096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290416 (or 290406 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 51.

The spelling of 261196236096 in words is "two hundred sixty-one billion, one hundred ninety-six million, two hundred thirty-six thousand, ninety-six".