265440344422 has 64 divisors (see below), whose sum is σ = 450334080000. Its totient is φ = 116292960000.

The previous prime is 265440344387. The next prime is 265440344447. The reversal of 265440344422 is 224443044562.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45456979 + ... + 45462817.

It is an arithmetic number, because the mean of its divisors is an integer number (7036470000).

Almost surely, 2^265440344422 is an apocalyptic number.

265440344422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

265440344422 is a deficient number, since it is larger than the sum of its proper divisors (184893735578).

265440344422 is a wasteful number, since it uses less digits than its factorization.

265440344422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493.

The product of its (nonzero) digits is 737280, while the sum is 40.

Adding to 265440344422 its reverse (224443044562), we get a palindrome (489883388984).

The spelling of 265440344422 in words is "two hundred sixty-five billion, four hundred forty million, three hundred forty-four thousand, four hundred twenty-two".