265084791440 has 80 divisors (see below), whose sum is σ = 709095686400. Its totient is φ = 90276211200.

The previous prime is 265084791437. The next prime is 265084791463. The reversal of 265084791440 is 44197480562.

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

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, 1505036 + ... + 1671915.

It is an arithmetic number, because the mean of its divisors is an integer number (8863696080).

Almost surely, 2^265084791440 is an apocalyptic number.

265084791440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265084791440 is an abundant number, since it is smaller than the sum of its proper divisors (444010894960).

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

265084791440 is a wasteful number, since it uses less digits than its factorization.

265084791440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177120 (or 3177114 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 265084791440 in words is "two hundred sixty-five billion, eighty-four million, seven hundred ninety-one thousand, four hundred forty".