1100161999 has 2 divisors, whose sum is σ = 1100162000. Its totient is φ = 1100161998.

The previous prime is 1100161963. The next prime is 1100162017. The reversal of 1100161999 is 9991610011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100161999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100161939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550080999 + 550081000.

It is an arithmetic number, because the mean of its divisors is an integer number (550081000).

Almost surely, 2^1100161999 is an apocalyptic number.

1100161999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100161999 is an equidigital number, since it uses as much as digits as its factorization.

1100161999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 37.

The square root of 1100161999 is about 33168.6900404583. The cubic root of 1100161999 is about 1032.3307882254.

The spelling of 1100161999 in words is "one billion, one hundred million, one hundred sixty-one thousand, nine hundred ninety-nine".