1099999945633 has 2 divisors, whose sum is σ = 1099999945634. Its totient is φ = 1099999945632.

The previous prime is 1099999945631. The next prime is 1099999945663. The reversal of 1099999945633 is 3365499999901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 917480453904 + 182519491729 = 957852^2 + 427223^2 .

It is a cyclic number.

It is not a de Polignac number, because 1099999945633 - 2¹ = 1099999945631 is a prime.

Together with 1099999945631, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1099999945633.

It is not a weakly prime, because it can be changed into another prime (1099999945631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549999972816 + 549999972817.

It is an arithmetic number, because the mean of its divisors is an integer number (549999972817).

Almost surely, 2^{1099999945633} is an apocalyptic number.

It is an amenable number.

1099999945633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099999945633 is an equidigital number, since it uses as much as digits as its factorization.

1099999945633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 573956280, while the sum is 76.

The spelling of 1099999945633 in words is "one trillion, ninety-nine billion, nine hundred ninety-nine million, nine hundred forty-five thousand, six hundred thirty-three".