166560412224004 has 12 divisors (see below), whose sum is σ = 293608317899484. Its totient is φ = 82672321395584.

The previous prime is 166560412224001. The next prime is 166560412224013. The reversal of 166560412224004 is 400422214065661.

It can be written as a sum of positive squares in 2 ways, for example, as 100929188507904 + 65631223716100 = 10046352^2 + 8101310^2 .

It is a super-2 number, since 2×166560412224004² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166560412224001) 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, 151971178489 + ... + 151971179584.

It is an arithmetic number, because the mean of its divisors is an integer number (24467359824957).

Almost surely, 2^{166560412224004} is an apocalyptic number.

It is an amenable number.

166560412224004 is a deficient number, since it is larger than the sum of its proper divisors (127047905675480).

166560412224004 is a wasteful number, since it uses less digits than its factorization.

166560412224004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303942358214 (or 303942358212 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

Adding to 166560412224004 its reverse (400422214065661), we get a palindrome (566982626289665).

The spelling of 166560412224004 in words is "one hundred sixty-six trillion, five hundred sixty billion, four hundred twelve million, two hundred twenty-four thousand, four".