265271280480 has 576 divisors, whose sum is σ = 977242226688. Its totient is φ = 67878881280.

The previous prime is 265271280451. The next prime is 265271280487. The reversal of 265271280480 is 84082172562.

265271280480 is a `hidden beast` number, since 2 + 6 + 527 + 1 + 2 + 80 + 48 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265271280487) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 153069694 + ... + 153071426.

It is an arithmetic number, because the mean of its divisors is an integer number (1696601088).

Almost surely, 2^265271280480 is an apocalyptic number.

265271280480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265271280480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488621113344).

265271280480 is an abundant number, since it is smaller than the sum of its proper divisors (711970946208).

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

265271280480 is a wasteful number, since it uses less digits than its factorization.

265271280480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921 (or 1901 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 265271280480 in words is "two hundred sixty-five billion, two hundred seventy-one million, two hundred eighty thousand, four hundred eighty".