166457753 has 12 divisors (see below), whose sum is σ = 211238352. Its totient is φ = 129706920.

The previous prime is 166457749. The next prime is 166457771. The reversal of 166457753 is 357754661.

It is not a de Polignac number, because 166457753 - 2² = 166457749 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166457713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153875 + ... + 154952.

It is an arithmetic number, because the mean of its divisors is an integer number (17603196).

Almost surely, 2^166457753 is an apocalyptic number.

It is an amenable number.

166457753 is a deficient number, since it is larger than the sum of its proper divisors (44780599).

166457753 is a wasteful number, since it uses less digits than its factorization.

166457753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308852 (or 308845 counting only the distinct ones).

The product of its digits is 529200, while the sum is 44.

The square root of 166457753 is about 12901.8507587090. The cubic root of 166457753 is about 550.0911727644.

The spelling of 166457753 in words is "one hundred sixty-six million, four hundred fifty-seven thousand, seven hundred fifty-three".