4666204373021 has 2 divisors, whose sum is σ = 4666204373022. Its totient is φ = 4666204373020.

The previous prime is 4666204373003. The next prime is 4666204373081. The reversal of 4666204373021 is 1203734026664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4509379660900 + 156824712121 = 2123530^2 + 396011^2 .

It is a cyclic number.

It is not a de Polignac number, because 4666204373021 - 2²⁶ = 4666137264157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4666204373081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2333102186510 + 2333102186511.

It is an arithmetic number, because the mean of its divisors is an integer number (2333102186511).

Almost surely, 2^{4666204373021} is an apocalyptic number.

It is an amenable number.

4666204373021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4666204373021 is an equidigital number, since it uses as much as digits as its factorization.

4666204373021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 44.

Adding to 4666204373021 its reverse (1203734026664), we get a palindrome (5869938399685).

The spelling of 4666204373021 in words is "four trillion, six hundred sixty-six billion, two hundred four million, three hundred seventy-three thousand, twenty-one".