143666400233 has 2 divisors, whose sum is σ = 143666400234. Its totient is φ = 143666400232.

The previous prime is 143666400187. The next prime is 143666400259. The reversal of 143666400233 is 332004666341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78695958784 + 64970441449 = 280528^2 + 254893^2 .

It is a cyclic number.

It is not a de Polignac number, because 143666400233 - 2⁶ = 143666400169 is a prime.

It is not a weakly prime, because it can be changed into another prime (143666400833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71833200116 + 71833200117.

It is an arithmetic number, because the mean of its divisors is an integer number (71833200117).

Almost surely, 2^143666400233 is an apocalyptic number.

It is an amenable number.

143666400233 is a deficient number, since it is larger than the sum of its proper divisors (1).

143666400233 is an equidigital number, since it uses as much as digits as its factorization.

143666400233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 38.

The spelling of 143666400233 in words is "one hundred forty-three billion, six hundred sixty-six million, four hundred thousand, two hundred thirty-three".