10506656066 has 8 divisors (see below), whose sum is σ = 15763036860. Its totient is φ = 5252310448.

The previous prime is 10506656063. The next prime is 10506656087. The reversal of 10506656066 is 66065660501.

10506656066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7837383841 + 2669272225 = 88529^2 + 51665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10506656066² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10506656063) 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 3 ways as a sum of consecutive naturals, for example, 495821 + ... + 516576.

Almost surely, 2^10506656066 is an apocalyptic number.

10506656066 is a deficient number, since it is larger than the sum of its proper divisors (5256380794).

10506656066 is a wasteful number, since it uses less digits than its factorization.

10506656066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017588.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 10506656066 in words is "ten billion, five hundred six million, six hundred fifty-six thousand, sixty-six".