161132663 has 2 divisors, whose sum is σ = 161132664. Its totient is φ = 161132662.

The previous prime is 161132651. The next prime is 161132683. The reversal of 161132663 is 366231161.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161132663 - 2²² = 156938359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161132683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80566331 + 80566332.

It is an arithmetic number, because the mean of its divisors is an integer number (80566332).

Almost surely, 2^161132663 is an apocalyptic number.

161132663 is a deficient number, since it is larger than the sum of its proper divisors (1).

161132663 is an equidigital number, since it uses as much as digits as its factorization.

161132663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The square root of 161132663 is about 12693.8041185454. The cubic root of 161132663 is about 544.1615624061.

The spelling of 161132663 in words is "one hundred sixty-one million, one hundred thirty-two thousand, six hundred sixty-three".