265980540504 has 384 divisors, whose sum is σ = 853993152000. Its totient is φ = 68547741696.

The previous prime is 265980540487. The next prime is 265980540541. The reversal of 265980540504 is 405045089562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 47299437 + ... + 47305059.

It is an arithmetic number, because the mean of its divisors is an integer number (2223940500).

Almost surely, 2^265980540504 is an apocalyptic number.

265980540504 is a gapful number since it is divisible by the number (24) 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 265980540504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426996576000).

265980540504 is an abundant number, since it is smaller than the sum of its proper divisors (588012611496).

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

265980540504 is a wasteful number, since it uses less digits than its factorization.

265980540504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5767 (or 5756 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 265980540504 in words is "two hundred sixty-five billion, nine hundred eighty million, five hundred forty thousand, five hundred four".