10665665506 has 16 divisors (see below), whose sum is σ = 16532794368. Its totient is φ = 5155113600.

The previous prime is 10665665497. The next prime is 10665665539. The reversal of 10665665506 is 60556656601.

10665665506 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10665665506² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 37935 + ... + 150898.

It is an arithmetic number, because the mean of its divisors is an integer number (1033299648).

Almost surely, 2^10665665506 is an apocalyptic number.

10665665506 is a deficient number, since it is larger than the sum of its proper divisors (5867128862).

10665665506 is a wasteful number, since it uses less digits than its factorization.

10665665506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189777.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 10665665506 in words is "ten billion, six hundred sixty-five million, six hundred sixty-five thousand, five hundred six".