166053 has 4 divisors (see below), whose sum is σ = 221408. Its totient is φ = 110700.

The previous prime is 166043. The next prime is 166063. The reversal of 166053 is 350661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (166043) and next prime (166063).

It is not a de Polignac number, because 166053 - 2⁵ = 166021 is a prime.

It is a D-number.

It is a Duffinian number.

166053 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27673 + ... + 27678.

It is an arithmetic number, because the mean of its divisors is an integer number (55352).

2¹⁶⁶⁰⁵³ is an apocalyptic number.

It is an amenable number.

166053 is a deficient number, since it is larger than the sum of its proper divisors (55355).

166053 is an equidigital number, since it uses as much as digits as its factorization.

166053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55354.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 166053 is about 407.4960122504. The cubic root of 166053 is about 54.9644949912.

The spelling of 166053 in words is "one hundred sixty-six thousand, fifty-three".