166073830 has 16 divisors (see below), whose sum is σ = 321927984. Its totient is φ = 61319520.

The previous prime is 166073827. The next prime is 166073837. The reversal of 166073830 is 38370661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166073837) 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, 638616 + ... + 638875.

It is an arithmetic number, because the mean of its divisors is an integer number (20120499).

Almost surely, 2^166073830 is an apocalyptic number.

166073830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166073830 is a deficient number, since it is larger than the sum of its proper divisors (155854154).

166073830 is a wasteful number, since it uses less digits than its factorization.

166073830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277511.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 166073830 is about 12886.9635678852. The cubic root of 166073830 is about 549.6679317821.

The spelling of 166073830 in words is "one hundred sixty-six million, seventy-three thousand, eight hundred thirty".