166672203 has 4 divisors (see below), whose sum is σ = 222229608. Its totient is φ = 111114800.

The previous prime is 166672201. The next prime is 166672211. The reversal of 166672203 is 302276661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166672203 - 2¹ = 166672201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166672201) 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, 27778698 + ... + 27778703.

It is an arithmetic number, because the mean of its divisors is an integer number (55557402).

Almost surely, 2^166672203 is an apocalyptic number.

166672203 is a deficient number, since it is larger than the sum of its proper divisors (55557405).

166672203 is an equidigital number, since it uses as much as digits as its factorization.

166672203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55557404.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 166672203 is about 12910.1589068454. The cubic root of 166672203 is about 550.3273016049.

The spelling of 166672203 in words is "one hundred sixty-six million, six hundred seventy-two thousand, two hundred three".