220466469541 has 2 divisors, whose sum is σ = 220466469542. Its totient is φ = 220466469540.

The previous prime is 220466469539. The next prime is 220466469731. The reversal of 220466469541 is 145964664022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216736802500 + 3729667041 = 465550^2 + 61071^2 .

It is a cyclic number.

It is not a de Polignac number, because 220466469541 - 2¹ = 220466469539 is a prime.

Together with 220466469539, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220466469521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110233234770 + 110233234771.

It is an arithmetic number, because the mean of its divisors is an integer number (110233234771).

Almost surely, 2^220466469541 is an apocalyptic number.

It is an amenable number.

220466469541 is a deficient number, since it is larger than the sum of its proper divisors (1).

220466469541 is an equidigital number, since it uses as much as digits as its factorization.

220466469541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 220466469541 in words is "two hundred twenty billion, four hundred sixty-six million, four hundred sixty-nine thousand, five hundred forty-one".