10564503681 has 16 divisors (see below), whose sum is σ = 15563055744. Its totient is φ = 6340502784.

The previous prime is 10564503643. The next prime is 10564503683. The reversal of 10564503681 is 18630546501.

It is not a de Polignac number, because 10564503681 - 2⁶ = 10564503617 is a prime.

It is a super-2 number, since 2×10564503681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10564503683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4502026 + ... + 4504371.

It is an arithmetic number, because the mean of its divisors is an integer number (972690984).

Almost surely, 2^10564503681 is an apocalyptic number.

It is an amenable number.

10564503681 is a deficient number, since it is larger than the sum of its proper divisors (4998552063).

10564503681 is a wasteful number, since it uses less digits than its factorization.

10564503681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9006440.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 10564503681 in words is "ten billion, five hundred sixty-four million, five hundred three thousand, six hundred eighty-one".