466536631052221 has 2 divisors, whose sum is σ = 466536631052222. Its totient is φ = 466536631052220.

The previous prime is 466536631052101. The next prime is 466536631052287. The reversal of 466536631052221 is 122250136635664.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275592736172196 + 190943894880025 = 16600986^2 + 13818245^2 .

It is a cyclic number.

It is not a de Polignac number, because 466536631052221 - 2²¹ = 466536628955069 is a prime.

It is a super-2 number, since 2×466536631052221² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (466536632052221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 233268315526110 + 233268315526111.

It is an arithmetic number, because the mean of its divisors is an integer number (233268315526111).

Almost surely, 2^{466536631052221} is an apocalyptic number.

It is an amenable number.

466536631052221 is a deficient number, since it is larger than the sum of its proper divisors (1).

466536631052221 is an equidigital number, since it uses as much as digits as its factorization.

466536631052221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9331200, while the sum is 52.

Adding to 466536631052221 its reverse (122250136635664), we get a palindrome (588786767687885).

The spelling of 466536631052221 in words is "four hundred sixty-six trillion, five hundred thirty-six billion, six hundred thirty-one million, fifty-two thousand, two hundred twenty-one".