265201645563156 has 48 divisors (see below), whose sum is σ = 649696259903040. Its totient is φ = 84078339502080.

The previous prime is 265201645563131. The next prime is 265201645563157. The reversal of 265201645563156 is 651365546102562.

It is a junction number, because it is equal to n+sod(n) for n = 265201645563096 and 265201645563105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265201645563157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5687093805 + ... + 5687140436.

It is an arithmetic number, because the mean of its divisors is an integer number (13535338747980).

Almost surely, 2^{265201645563156} is an apocalyptic number.

It is an amenable number.

265201645563156 is an abundant number, since it is smaller than the sum of its proper divisors (384494614339884).

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

265201645563156 is a wasteful number, since it uses less digits than its factorization.

265201645563156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11374234344 (or 11374234342 counting only the distinct ones).

The product of its (nonzero) digits is 38880000, while the sum is 57.

The spelling of 265201645563156 in words is "two hundred sixty-five trillion, two hundred one billion, six hundred forty-five million, five hundred sixty-three thousand, one hundred fifty-six".