10666012726 has 4 divisors (see below), whose sum is σ = 15999019092. Its totient is φ = 5333006362.

The previous prime is 10666012717. The next prime is 10666012733. The reversal of 10666012726 is 62721066601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62721066601 = 92669 ⋅676829.

It is a super-2 number, since 2×10666012726² (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 as a sum of consecutive naturals, namely, 2666503180 + ... + 2666503183.

It is an arithmetic number, because the mean of its divisors is an integer number (3999754773).

Almost surely, 2^10666012726 is an apocalyptic number.

10666012726 is a deficient number, since it is larger than the sum of its proper divisors (5333006366).

10666012726 is an equidigital number, since it uses as much as digits as its factorization.

10666012726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333006365.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 10666012726 in words is "ten billion, six hundred sixty-six million, twelve thousand, seven hundred twenty-six".