166568963472 has 60 divisors (see below), whose sum is σ = 467820804204. Its totient is φ = 55325383680.

The previous prime is 166568963471. The next prime is 166568963497. The reversal of 166568963472 is 274369865661.

166568963472 is a `hidden beast` number, since 1 + 6 + 6 + 568 + 9 + 63 + 4 + 7 + 2 = 666.

166568963472 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 147382281216 + 19186682256 = 383904^2 + 138516^2 .

It is not an unprimeable number, because it can be changed into a prime (166568963471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2017773 + ... + 2098700.

Almost surely, 2^166568963472 is an apocalyptic number.

166568963472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166568963472 is an abundant number, since it is smaller than the sum of its proper divisors (301251840732).

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

166568963472 is a wasteful number, since it uses less digits than its factorization.

166568963472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116768 (or 4116759 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 166568963472 in words is "one hundred sixty-six billion, five hundred sixty-eight million, nine hundred sixty-three thousand, four hundred seventy-two".