265600260066 has 8 divisors (see below), whose sum is σ = 531200520144. Its totient is φ = 88533420020.

The previous prime is 265600260049. The next prime is 265600260077. The reversal of 265600260066 is 660062006562.

It is a sphenic number, since it is the product of 3 distinct primes.

265600260066 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22133355000 + ... + 22133355011.

It is an arithmetic number, because the mean of its divisors is an integer number (66400065018).

Almost surely, 2^265600260066 is an apocalyptic number.

265600260066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

265600260066 is a wasteful number, since it uses less digits than its factorization.

265600260066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44266710016.

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 265600260066 in words is "two hundred sixty-five billion, six hundred million, two hundred sixty thousand, sixty-six".