20000166323 has 2 divisors, whose sum is σ = 20000166324. Its totient is φ = 20000166322.

The previous prime is 20000166299. The next prime is 20000166353. The reversal of 20000166323 is 32366100002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20000166323 - 2³⁰ = 18926424499 is a prime.

It is not a weakly prime, because it can be changed into another prime (20000166353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000083161 + 10000083162.

It is an arithmetic number, because the mean of its divisors is an integer number (10000083162).

Almost surely, 2^20000166323 is an apocalyptic number.

20000166323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000166323 is an equidigital number, since it uses as much as digits as its factorization.

20000166323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20000166323 its reverse (32366100002), we get a palindrome (52366266325).

The spelling of 20000166323 in words is "twenty billion, one hundred sixty-six thousand, three hundred twenty-three".