265121330022480 has 80 divisors (see below), whose sum is σ = 822534151320000. Its totient is φ = 70642416758784.

The previous prime is 265121330022443. The next prime is 265121330022481. The reversal of 265121330022480 is 84220033121562.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265121330022481) 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, 441922902 + ... + 442522421.

It is an arithmetic number, because the mean of its divisors is an integer number (10281676891500).

Almost surely, 2^{265121330022480} is an apocalyptic number.

265121330022480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265121330022480 is an abundant number, since it is smaller than the sum of its proper divisors (557412821297520).

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

265121330022480 is a wasteful number, since it uses less digits than its factorization.

265121330022480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884446588 (or 884446582 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 265121330022480 in words is "two hundred sixty-five trillion, one hundred twenty-one billion, three hundred thirty million, twenty-two thousand, four hundred eighty".