166512542326 has 16 divisors (see below), whose sum is σ = 269021235168. Its totient is φ = 76840675200.

The previous prime is 166512542321. The next prime is 166512542341. The reversal of 166512542326 is 623245215661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166512542321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287395 + ... + 644686.

It is an arithmetic number, because the mean of its divisors is an integer number (16813827198).

Almost surely, 2^166512542326 is an apocalyptic number.

166512542326 is a deficient number, since it is larger than the sum of its proper divisors (102508692842).

166512542326 is a wasteful number, since it uses less digits than its factorization.

166512542326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938967.

The product of its digits is 518400, while the sum is 43.

Adding to 166512542326 its reverse (623245215661), we get a palindrome (789757757987).

The spelling of 166512542326 in words is "one hundred sixty-six billion, five hundred twelve million, five hundred forty-two thousand, three hundred twenty-six".