1099604559481 has 2 divisors, whose sum is σ = 1099604559482. Its totient is φ = 1099604559480.

The previous prime is 1099604559437. The next prime is 1099604559563. The reversal of 1099604559481 is 1849554069901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 799207392256 + 300397167225 = 893984^2 + 548085^2 .

It is a cyclic number.

It is not a de Polignac number, because 1099604559481 - 2³⁷ = 962165606009 is a prime.

It is a super-2 number, since 2×1099604559481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1099604551481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549802279740 + 549802279741.

It is an arithmetic number, because the mean of its divisors is an integer number (549802279741).

Almost surely, 2^{1099604559481} is an apocalyptic number.

It is an amenable number.

1099604559481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099604559481 is an equidigital number, since it uses as much as digits as its factorization.

1099604559481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13996800, while the sum is 61.

The spelling of 1099604559481 in words is "one trillion, ninety-nine billion, six hundred four million, five hundred fifty-nine thousand, four hundred eighty-one".