10565665536 has 144 divisors (see below), whose sum is σ = 29555128064. Its totient is φ = 3346624512.

The previous prime is 10565665477. The next prime is 10565665541. The reversal of 10565665536 is 63556656501.

It is a super-2 number, since 2×10565665536² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 15 ways as a sum of consecutive naturals, for example, 1217565 + ... + 1226211.

Almost surely, 2^10565665536 is an apocalyptic number.

10565665536 is a gapful number since it is divisible by the number (16) 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 10565665536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14777564032).

10565665536 is an abundant number, since it is smaller than the sum of its proper divisors (18989462528).

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

10565665536 is an equidigital number, since it uses as much as digits as its factorization.

10565665536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8746 (or 8732 counting only the distinct ones).

The product of its (nonzero) digits is 2430000, while the sum is 48.

The spelling of 10565665536 in words is "ten billion, five hundred sixty-five million, six hundred sixty-five thousand, five hundred thirty-six".