10256661066 has 8 divisors (see below), whose sum is σ = 20513322144. Its totient is φ = 3418887020.

The previous prime is 10256661053. The next prime is 10256661127. The reversal of 10256661066 is 66016665201.

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

10256661066 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854721750 + ... + 854721761.

It is an arithmetic number, because the mean of its divisors is an integer number (2564165268).

Almost surely, 2^10256661066 is an apocalyptic number.

10256661066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10256661066 is a wasteful number, since it uses less digits than its factorization.

10256661066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709443516.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 10256661066 in words is "ten billion, two hundred fifty-six million, six hundred sixty-one thousand, sixty-six".