166654337 has 2 divisors, whose sum is σ = 166654338. Its totient is φ = 166654336.

The previous prime is 166654273. The next prime is 166654373. The reversal of 166654337 is 733456661.

Together with next prime (166654373) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131239936 + 35414401 = 11456^2 + 5951^2 .

It is a cyclic number.

It is not a de Polignac number, because 166654337 - 2⁶ = 166654273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166654294 and 166654303.

It is not a weakly prime, because it can be changed into another prime (166654837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83327168 + 83327169.

It is an arithmetic number, because the mean of its divisors is an integer number (83327169).

Almost surely, 2^166654337 is an apocalyptic number.

It is an amenable number.

166654337 is a deficient number, since it is larger than the sum of its proper divisors (1).

166654337 is an equidigital number, since it uses as much as digits as its factorization.

166654337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 41.

The square root of 166654337 is about 12909.4669525895. The cubic root of 166654337 is about 550.3076372603.

The spelling of 166654337 in words is "one hundred sixty-six million, six hundred fifty-four thousand, three hundred thirty-seven".