1159921663 has 2 divisors, whose sum is σ = 1159921664. Its totient is φ = 1159921662.

The previous prime is 1159921627. The next prime is 1159921669. The reversal of 1159921663 is 3661299511.

It is a strong prime.

It is an emirp because it is prime and its reverse (3661299511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1159921663 - 2²¹ = 1157824511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1159921669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579960831 + 579960832.

It is an arithmetic number, because the mean of its divisors is an integer number (579960832).

Almost surely, 2^1159921663 is an apocalyptic number.

1159921663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1159921663 is an equidigital number, since it uses as much as digits as its factorization.

1159921663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 43.

The square root of 1159921663 is about 34057.6226856779. The cubic root of 1159921663 is about 1050.6939216493.

The spelling of 1159921663 in words is "one billion, one hundred fifty-nine million, nine hundred twenty-one thousand, six hundred sixty-three".