166406446112 has 24 divisors (see below), whose sum is σ = 327995023356. Its totient is φ = 83106122752.

The previous prime is 166406446111. The next prime is 166406446183. The reversal of 166406446112 is 211644604661.

It can be written as a sum of positive squares in 2 ways, for example, as 147920236816 + 18486209296 = 384604^2 + 135964^2 .

It is a super-2 number, since 2×166406446112² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166406446112.

It is not an unprimeable number, because it can be changed into a prime (166406446111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3006533 + ... + 3061380.

Almost surely, 2^166406446112 is an apocalyptic number.

It is an amenable number.

166406446112 is a deficient number, since it is larger than the sum of its proper divisors (161588577244).

166406446112 is an equidigital number, since it uses as much as digits as its factorization.

166406446112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6068780 (or 6068772 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 166406446112 in words is "one hundred sixty-six billion, four hundred six million, four hundred forty-six thousand, one hundred twelve".