10265563540 has 12 divisors (see below), whose sum is σ = 21557683476. Its totient is φ = 4106225408.

The previous prime is 10265563537. The next prime is 10265563571. The reversal of 10265563540 is 4536556201.

It can be written as a sum of positive squares in 2 ways, for example, as 2680547076 + 7585016464 = 51774^2 + 87092^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10265563540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256639069 + ... + 256639108.

It is an arithmetic number, because the mean of its divisors is an integer number (1796473623).

Almost surely, 2^10265563540 is an apocalyptic number.

10265563540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10265563540 is an abundant number, since it is smaller than the sum of its proper divisors (11292119936).

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

10265563540 is a wasteful number, since it uses less digits than its factorization.

10265563540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513278186 (or 513278184 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 10265563540 in words is "ten billion, two hundred sixty-five million, five hundred sixty-three thousand, five hundred forty".