265710223640 has 32 divisors (see below), whose sum is σ = 597938922000. Its totient is φ = 106267926144.

The previous prime is 265710223633. The next prime is 265710223651. The reversal of 265710223640 is 46322017562.

It is a junction number, because it is equal to n+sod(n) for n = 265710223594 and 265710223603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237035 + ... + 766554.

Almost surely, 2^265710223640 is an apocalyptic number.

265710223640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265710223640 is an abundant number, since it is smaller than the sum of its proper divisors (332228698360).

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

265710223640 is a wasteful number, since it uses less digits than its factorization.

265710223640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010219 (or 1010215 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 265710223640 in words is "two hundred sixty-five billion, seven hundred ten million, two hundred twenty-three thousand, six hundred forty".