554444445555461 has 2 divisors, whose sum is σ = 554444445555462. Its totient is φ = 554444445555460.

The previous prime is 554444445555431. The next prime is 554444445555463. The reversal of 554444445555461 is 164555544444455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 535074156988900 + 19370288566561 = 23131670^2 + 4401169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-554444445555461 is a prime.

Together with 554444445555463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554444445555463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277222222777730 + 277222222777731.

It is an arithmetic number, because the mean of its divisors is an integer number (277222222777731).

Almost surely, 2^{554444445555461} is an apocalyptic number.

It is an amenable number.

554444445555461 is a deficient number, since it is larger than the sum of its proper divisors (1).

554444445555461 is an equidigital number, since it uses as much as digits as its factorization.

554444445555461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536000000, while the sum is 65.

The spelling of 554444445555461 in words is "five hundred fifty-four trillion, four hundred forty-four billion, four hundred forty-five million, five hundred fifty-five thousand, four hundred sixty-one".