166770325425 has 24 divisors (see below), whose sum is σ = 300793024800. Its totient is φ = 80858339200.

The previous prime is 166770325373. The next prime is 166770325429. The reversal of 166770325425 is 524523077661.

166770325425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166770325425 - 2⁶ = 166770325361 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166770325429) 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 23 ways as a sum of consecutive naturals, for example, 101072100 + ... + 101073749.

It is an arithmetic number, because the mean of its divisors is an integer number (12533042700).

Almost surely, 2^166770325425 is an apocalyptic number.

166770325425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166770325425 is a deficient number, since it is larger than the sum of its proper divisors (134022699375).

166770325425 is a wasteful number, since it uses less digits than its factorization.

166770325425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202145873 (or 202145868 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 166770325425 in words is "one hundred sixty-six billion, seven hundred seventy million, three hundred twenty-five thousand, four hundred twenty-five".