166730122849 has 16 divisors (see below), whose sum is σ = 174069792000. Its totient is φ = 159501988800.

The previous prime is 166730122841. The next prime is 166730122901. The reversal of 166730122849 is 948221037661.

It is a happy number.

166730122849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 166730122849 - 2³ = 166730122841 is a prime.

It is a super-3 number, since 3×166730122849³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166730122841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1654492 + ... + 1752370.

It is an arithmetic number, because the mean of its divisors is an integer number (10879362000).

Almost surely, 2^166730122849 is an apocalyptic number.

It is an amenable number.

166730122849 is a deficient number, since it is larger than the sum of its proper divisors (7339669151).

166730122849 is a wasteful number, since it uses less digits than its factorization.

166730122849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98448.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 166730122849 in words is "one hundred sixty-six billion, seven hundred thirty million, one hundred twenty-two thousand, eight hundred forty-nine".