900990066241 has 2 divisors, whose sum is σ = 900990066242. Its totient is φ = 900990066240.

The previous prime is 900990066233. The next prime is 900990066259. The reversal of 900990066241 is 142660099009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 566670200625 + 334319865616 = 752775^2 + 578204^2 .

It is a cyclic number.

It is not a de Polignac number, because 900990066241 - 2³ = 900990066233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 900990066191 and 900990066200.

It is not a weakly prime, because it can be changed into another prime (900990066541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450495033120 + 450495033121.

It is an arithmetic number, because the mean of its divisors is an integer number (450495033121).

Almost surely, 2^900990066241 is an apocalyptic number.

It is an amenable number.

900990066241 is a deficient number, since it is larger than the sum of its proper divisors (1).

900990066241 is an equidigital number, since it uses as much as digits as its factorization.

900990066241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 900990066241 in words is "nine hundred billion, nine hundred ninety million, sixty-six thousand, two hundred forty-one".