10666838766 has 16 divisors (see below), whose sum is σ = 21335359104. Its totient is φ = 3555332664.

The previous prime is 10666838737. The next prime is 10666838789. The reversal of 10666838766 is 66783866601.

It is a happy number.

It is a super-2 number, since 2×10666838766² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21631 + ... + 147653.

It is an arithmetic number, because the mean of its divisors is an integer number (1333459944).

Almost surely, 2^10666838766 is an apocalyptic number.

10666838766 is an abundant number, since it is smaller than the sum of its proper divisors (10668520338).

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

10666838766 is a wasteful number, since it uses less digits than its factorization.

10666838766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140135.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 10666838766 in words is "ten billion, six hundred sixty-six million, eight hundred thirty-eight thousand, seven hundred sixty-six".