166833500153 has 2 divisors, whose sum is σ = 166833500154. Its totient is φ = 166833500152.

The previous prime is 166833500107. The next prime is 166833500177. The reversal of 166833500153 is 351005338661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105033031744 + 61800468409 = 324088^2 + 248597^2 .

It is a cyclic number.

It is not a de Polignac number, because 166833500153 - 2⁸ = 166833499897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 166833500153.

It is not a weakly prime, because it can be changed into another prime (166833500653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83416750076 + 83416750077.

It is an arithmetic number, because the mean of its divisors is an integer number (83416750077).

Almost surely, 2^166833500153 is an apocalyptic number.

It is an amenable number.

166833500153 is a deficient number, since it is larger than the sum of its proper divisors (1).

166833500153 is an equidigital number, since it uses as much as digits as its factorization.

166833500153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 166833500153 in words is "one hundred sixty-six billion, eight hundred thirty-three million, five hundred thousand, one hundred fifty-three".