220554258453481 has 2 divisors, whose sum is σ = 220554258453482. Its totient is φ = 220554258453480.

The previous prime is 220554258453479. The next prime is 220554258453511. The reversal of 220554258453481 is 184354852455022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117939708600025 + 102614549853456 = 10860005^2 + 10129884^2 .

It is a cyclic number.

It is not a de Polignac number, because 220554258453481 - 2¹ = 220554258453479 is a prime.

It is a super-2 number, since 2×220554258453481² (a number of 29 digits) contains 22 as substring.

Together with 220554258453479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (220554258453401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110277129226740 + 110277129226741.

It is an arithmetic number, because the mean of its divisors is an integer number (110277129226741).

Almost surely, 2^{220554258453481} is an apocalyptic number.

It is an amenable number.

220554258453481 is a deficient number, since it is larger than the sum of its proper divisors (1).

220554258453481 is an equidigital number, since it uses as much as digits as its factorization.

220554258453481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440000, while the sum is 58.

The spelling of 220554258453481 in words is "two hundred twenty trillion, five hundred fifty-four billion, two hundred fifty-eight million, four hundred fifty-three thousand, four hundred eighty-one".