556153975784447 has 2 divisors, whose sum is σ = 556153975784448. Its totient is φ = 556153975784446.

The previous prime is 556153975784383. The next prime is 556153975784503. The reversal of 556153975784447 is 744487579351655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556153975784447 - 2⁶ = 556153975784383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556153975784747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278076987892223 + 278076987892224.

It is an arithmetic number, because the mean of its divisors is an integer number (278076987892224).

Almost surely, 2^{556153975784447} is an apocalyptic number.

556153975784447 is a deficient number, since it is larger than the sum of its proper divisors (1).

556153975784447 is an equidigital number, since it uses as much as digits as its factorization.

556153975784447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17781120000, while the sum is 80.

The spelling of 556153975784447 in words is "five hundred fifty-six trillion, one hundred fifty-three billion, nine hundred seventy-five million, seven hundred eighty-four thousand, four hundred forty-seven".