1066160555161 has 8 divisors (see below), whose sum is σ = 1150663525704. Its totient is φ = 982013387520.

The previous prime is 1066160555129. The next prime is 1066160555167. The reversal of 1066160555161 is 1615550616601.

It can be written as a sum of positive squares in 4 ways, for example, as 15084506761 + 1051076048400 = 122819^2 + 1025220^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1066160555161 - 2⁵ = 1066160555129 is a prime.

It is a super-2 number, since 2×1066160555161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066160555167) 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 7 ways as a sum of consecutive naturals, for example, 88944496 + ... + 88956481.

It is an arithmetic number, because the mean of its divisors is an integer number (143832940713).

Almost surely, 2^{1066160555161} is an apocalyptic number.

It is an amenable number.

1066160555161 is a deficient number, since it is larger than the sum of its proper divisors (84502970543).

1066160555161 is a wasteful number, since it uses less digits than its factorization.

1066160555161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177901451.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 1066160555161 in words is "one trillion, sixty-six billion, one hundred sixty million, five hundred fifty-five thousand, one hundred sixty-one".