166703357 has 2 divisors, whose sum is σ = 166703358. Its totient is φ = 166703356.

The previous prime is 166703347. The next prime is 166703387. The reversal of 166703357 is 753307661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102799321 + 63904036 = 10139^2 + 7994^2 .

It is a cyclic number.

It is not a de Polignac number, because 166703357 - 2¹⁸ = 166441213 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166703357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166703347) 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 as a sum of consecutive naturals, namely, 83351678 + 83351679.

It is an arithmetic number, because the mean of its divisors is an integer number (83351679).

Almost surely, 2^166703357 is an apocalyptic number.

It is an amenable number.

166703357 is a deficient number, since it is larger than the sum of its proper divisors (1).

166703357 is an equidigital number, since it uses as much as digits as its factorization.

166703357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 166703357 is about 12911.3654196603. The cubic root of 166703357 is about 550.3615881233.

The spelling of 166703357 in words is "one hundred sixty-six million, seven hundred three thousand, three hundred fifty-seven".