10666346661 has 12 divisors (see below), whose sum is σ = 15412183488. Its totient is φ = 7108480104.

The previous prime is 10666346651. The next prime is 10666346671. The reversal of 10666346661 is 16664366601.

10666346661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10666346651) and next prime (10666346671).

It is not a de Polignac number, because 10666346661 - 2⁵ = 10666346629 is a prime.

It is a super-2 number, since 2×10666346661² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10666346651) 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 11 ways as a sum of consecutive naturals, for example, 173325 + ... + 226658.

It is an arithmetic number, because the mean of its divisors is an integer number (1284348624).

Almost surely, 2^10666346661 is an apocalyptic number.

It is an amenable number.

10666346661 is a deficient number, since it is larger than the sum of its proper divisors (4745836827).

10666346661 is a wasteful number, since it uses less digits than its factorization.

10666346661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402952 (or 402949 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 10666346661 in words is "ten billion, six hundred sixty-six million, three hundred forty-six thousand, six hundred sixty-one".