10666211656 has 32 divisors (see below), whose sum is σ = 20225620800. Its totient is φ = 5272862400.

The previous prime is 10666211651. The next prime is 10666211657. The reversal of 10666211656 is 65611266601.

10666211656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10666211656² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10666211651) by changing a digit.

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, 588181 + ... + 606043.

It is an arithmetic number, because the mean of its divisors is an integer number (632050650).

Almost surely, 2^10666211656 is an apocalyptic number.

It is an amenable number.

10666211656 is a deficient number, since it is larger than the sum of its proper divisors (9559409144).

10666211656 is a wasteful number, since it uses less digits than its factorization.

10666211656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18709 (or 18705 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

Subtracting 10666211656 from its reverse (65611266601), we obtain a palindrome (54945054945).

The spelling of 10666211656 in words is "ten billion, six hundred sixty-six million, two hundred eleven thousand, six hundred fifty-six".