105554444399 has 2 divisors, whose sum is σ = 105554444400. Its totient is φ = 105554444398.

The previous prime is 105554444309. The next prime is 105554444419. The reversal of 105554444399 is 993444455501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105554444399 - 2²⁸ = 105286008943 is a prime.

It is a super-2 number, since 2×105554444399² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 105554444399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105554444309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52777222199 + 52777222200.

It is an arithmetic number, because the mean of its divisors is an integer number (52777222200).

Almost surely, 2^105554444399 is an apocalyptic number.

105554444399 is a deficient number, since it is larger than the sum of its proper divisors (1).

105554444399 is an equidigital number, since it uses as much as digits as its factorization.

105554444399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776000, while the sum is 53.

The spelling of 105554444399 in words is "one hundred five billion, five hundred fifty-four million, four hundred forty-four thousand, three hundred ninety-nine".