166125430 has 16 divisors (see below), whose sum is σ = 299426544. Its totient is φ = 66361120.

The previous prime is 166125409. The next prime is 166125437. The reversal of 166125430 is 34521661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166125437) 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 7 ways as a sum of consecutive naturals, for example, 3016 + ... + 18475.

It is an arithmetic number, because the mean of its divisors is an integer number (18714159).

Almost surely, 2^166125430 is an apocalyptic number.

166125430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166125430 is a deficient number, since it is larger than the sum of its proper divisors (133301114).

166125430 is a wasteful number, since it uses less digits than its factorization.

166125430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22271.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 166125430 is about 12888.9654355965. The cubic root of 166125430 is about 549.7248541126.

The spelling of 166125430 in words is "one hundred sixty-six million, one hundred twenty-five thousand, four hundred thirty".