166723030 has 16 divisors (see below), whose sum is σ = 310450320. Its totient is φ = 64389472.

The previous prime is 166723019. The next prime is 166723031. The reversal of 166723030 is 30327661.

It is a self number, because there is not a number n which added to its sum of digits gives 166723030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166723031) 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, 287164 + ... + 287743.

It is an arithmetic number, because the mean of its divisors is an integer number (19403145).

Almost surely, 2^166723030 is an apocalyptic number.

166723030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166723030 is a deficient number, since it is larger than the sum of its proper divisors (143727290).

166723030 is a wasteful number, since it uses less digits than its factorization.

166723030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574943.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 166723030 is about 12912.1272453457. The cubic root of 166723030 is about 550.3832370327.

The spelling of 166723030 in words is "one hundred sixty-six million, seven hundred twenty-three thousand, thirty".