160666555556 has 12 divisors (see below), whose sum is σ = 302794662492. Its totient is φ = 74153794848.

The previous prime is 160666555529. The next prime is 160666555601. The reversal of 160666555556 is 655555666061.

It can be written as a sum of positive squares in 2 ways, for example, as 10564550656 + 150102004900 = 102784^2 + 387430^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1544870675 + ... + 1544870778.

It is an arithmetic number, because the mean of its divisors is an integer number (25232888541).

Almost surely, 2^160666555556 is an apocalyptic number.

It is an amenable number.

160666555556 is a deficient number, since it is larger than the sum of its proper divisors (142128106936).

160666555556 is a wasteful number, since it uses less digits than its factorization.

160666555556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089741470 (or 3089741468 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 56.

The spelling of 160666555556 in words is "one hundred sixty billion, six hundred sixty-six million, five hundred fifty-five thousand, five hundred fifty-six".