10656533645 has 4 divisors (see below), whose sum is σ = 12787840380. Its totient is φ = 8525226912.

The previous prime is 10656533621. The next prime is 10656533677. The reversal of 10656533645 is 54633565601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2635898281 + 8020635364 = 51341^2 + 89558^2 .

It is a cyclic number.

It is not a de Polignac number, because 10656533645 - 2¹² = 10656529549 is a prime.

It is a super-3 number, since 3×10656533645³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 10656533596 and 10656533605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065653360 + ... + 1065653369.

It is an arithmetic number, because the mean of its divisors is an integer number (3196960095).

Almost surely, 2^10656533645 is an apocalyptic number.

It is an amenable number.

10656533645 is a deficient number, since it is larger than the sum of its proper divisors (2131306735).

10656533645 is an equidigital number, since it uses as much as digits as its factorization.

10656533645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131306734.

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 10656533645 in words is "ten billion, six hundred fifty-six million, five hundred thirty-three thousand, six hundred forty-five".