265212521344416 has 96 divisors (see below), whose sum is σ = 724352118860160. Its totient is φ = 84862367980544.

The previous prime is 265212521344327. The next prime is 265212521344423. The reversal of 265212521344416 is 614443125212562.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274845300 + ... + 275808563.

It is an arithmetic number, because the mean of its divisors is an integer number (7545334571460).

Almost surely, 2^{265212521344416} is an apocalyptic number.

It is an amenable number.

265212521344416 is an abundant number, since it is smaller than the sum of its proper divisors (459139597515744).

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

265212521344416 is a wasteful number, since it uses less digits than its factorization.

265212521344416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550654078 (or 550654070 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 48.

Adding to 265212521344416 its reverse (614443125212562), we get a palindrome (879655646556978).

The spelling of 265212521344416 in words is "two hundred sixty-five trillion, two hundred twelve billion, five hundred twenty-one million, three hundred forty-four thousand, four hundred sixteen".