166010340077569 has 6 divisors (see below), whose sum is σ = 179762675942166. Its totient is φ = 153240313917600.

The previous prime is 166010340077437. The next prime is 166010340077611. The reversal of 166010340077569 is 965770043010661.

It can be written as a sum of positive squares in 3 ways, for example, as 8041262546944 + 157969077530625 = 2835712^2 + 12568575^2 .

It is not a de Polignac number, because 166010340077569 - 2³⁷ = 165872901124097 is a prime.

It is a super-2 number, since 2×166010340077569² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166010340077269) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 491154852132 + ... + 491154852469.

It is an arithmetic number, because the mean of its divisors is an integer number (29960445990361).

Almost surely, 2^{166010340077569} is an apocalyptic number.

It is an amenable number.

166010340077569 is a deficient number, since it is larger than the sum of its proper divisors (13752335864597).

166010340077569 is an equidigital number, since it uses as much as digits as its factorization.

166010340077569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982309704627 (or 982309704614 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 166010340077569 in words is "one hundred sixty-six trillion, ten billion, three hundred forty million, seventy-seven thousand, five hundred sixty-nine".