166053233 has 4 divisors (see below), whose sum is σ = 167765220. Its totient is φ = 164341248.

The previous prime is 166053227. The next prime is 166053241. The reversal of 166053233 is 332350661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332350661 = 5479 ⋅60659.

It can be written as a sum of positive squares in 2 ways, for example, as 41886784 + 124166449 = 6472^2 + 11143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166053233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166053196 and 166053205.

It is not an unprimeable number, because it can be changed into a prime (166053253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855848 + ... + 856041.

It is an arithmetic number, because the mean of its divisors is an integer number (41941305).

Almost surely, 2^166053233 is an apocalyptic number.

It is an amenable number.

166053233 is a deficient number, since it is larger than the sum of its proper divisors (1711987).

166053233 is an equidigital number, since it uses as much as digits as its factorization.

166053233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711986.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 166053233 is about 12886.1644021796. The cubic root of 166053233 is about 549.6452069927.

The spelling of 166053233 in words is "one hundred sixty-six million, fifty-three thousand, two hundred thirty-three".