10666531161 has 36 divisors (see below), whose sum is σ = 18200263536. Its totient is φ = 5967280800.

The previous prime is 10666531159. The next prime is 10666531217. The reversal of 10666531161 is 16113566601.

It is not a de Polignac number, because 10666531161 - 2¹ = 10666531159 is a prime.

It is a super-2 number, since 2×10666531161² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10666531111) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 302035 + ... + 335496.

It is an arithmetic number, because the mean of its divisors is an integer number (505562876).

Almost surely, 2^10666531161 is an apocalyptic number.

10666531161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10666531161 is a deficient number, since it is larger than the sum of its proper divisors (7533732375).

10666531161 is a wasteful number, since it uses less digits than its factorization.

10666531161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637574 (or 637558 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 10666531161 in words is "ten billion, six hundred sixty-six million, five hundred thirty-one thousand, one hundred sixty-one".