166493053 has 16 divisors (see below), whose sum is σ = 179919360. Its totient is φ = 153504000.

The previous prime is 166493051. The next prime is 166493077. The reversal of 166493053 is 350394661.

It is a cyclic number.

It is not a de Polignac number, because 166493053 - 2¹ = 166493051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166493051) 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 15 ways as a sum of consecutive naturals, for example, 202383 + ... + 203203.

It is an arithmetic number, because the mean of its divisors is an integer number (11244960).

Almost surely, 2^166493053 is an apocalyptic number.

It is an amenable number.

166493053 is a deficient number, since it is larger than the sum of its proper divisors (13426307).

166493053 is a wasteful number, since it uses less digits than its factorization.

166493053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 166493053 is about 12903.2187069739. The cubic root of 166493053 is about 550.1300551946.

The spelling of 166493053 in words is "one hundred sixty-six million, four hundred ninety-three thousand, fifty-three".