166703533 has 2 divisors, whose sum is σ = 166703534. Its totient is φ = 166703532.

The previous prime is 166703519. The next prime is 166703597. The reversal of 166703533 is 335307661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163891204 + 2812329 = 12802^2 + 1677^2 .

It is a cyclic number.

It is not a de Polignac number, because 166703533 - 2⁹ = 166703021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166703503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83351766 + 83351767.

It is an arithmetic number, because the mean of its divisors is an integer number (83351767).

Almost surely, 2^166703533 is an apocalyptic number.

It is an amenable number.

166703533 is a deficient number, since it is larger than the sum of its proper divisors (1).

166703533 is an equidigital number, since it uses as much as digits as its factorization.

166703533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 34.

The square root of 166703533 is about 12911.3722353590. The cubic root of 166703533 is about 550.3617818078.

The spelling of 166703533 in words is "one hundred sixty-six million, seven hundred three thousand, five hundred thirty-three".