166530153353 has 2 divisors, whose sum is σ = 166530153354. Its totient is φ = 166530153352.

The previous prime is 166530153329. The next prime is 166530153371. The reversal of 166530153353 is 353351035661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126204694009 + 40325459344 = 355253^2 + 200812^2 .

It is a cyclic number.

It is not a de Polignac number, because 166530153353 - 2¹² = 166530149257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166530153353.

It is not a weakly prime, because it can be changed into another prime (166530153313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83265076676 + 83265076677.

It is an arithmetic number, because the mean of its divisors is an integer number (83265076677).

Almost surely, 2^166530153353 is an apocalyptic number.

It is an amenable number.

166530153353 is a deficient number, since it is larger than the sum of its proper divisors (1).

166530153353 is an equidigital number, since it uses as much as digits as its factorization.

166530153353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 364500, while the sum is 41.

The spelling of 166530153353 in words is "one hundred sixty-six billion, five hundred thirty million, one hundred fifty-three thousand, three hundred fifty-three".