166260443560 has 32 divisors (see below), whose sum is σ = 376816565160. Its totient is φ = 66018743296.

The previous prime is 166260443543. The next prime is 166260443593. The reversal of 166260443560 is 65344062661.

It can be written as a sum of positive squares in 4 ways, for example, as 119180991076 + 47079452484 = 345226^2 + 216978^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15164269 + ... + 15175228.

Almost surely, 2^166260443560 is an apocalyptic number.

166260443560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166260443560 is an abundant number, since it is smaller than the sum of its proper divisors (210556121600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166260443560 is a wasteful number, since it uses less digits than its factorization.

166260443560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30339645 (or 30339641 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 166260443560 in words is "one hundred sixty-six billion, two hundred sixty million, four hundred forty-three thousand, five hundred sixty".