159779663 has 2 divisors, whose sum is σ = 159779664. Its totient is φ = 159779662.

The previous prime is 159779629. The next prime is 159779693. The reversal of 159779663 is 366977951.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159779663 - 2¹⁰ = 159778639 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159779603) 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, 79889831 + 79889832.

It is an arithmetic number, because the mean of its divisors is an integer number (79889832).

Almost surely, 2^159779663 is an apocalyptic number.

159779663 is a deficient number, since it is larger than the sum of its proper divisors (1).

159779663 is an equidigital number, since it uses as much as digits as its factorization.

159779663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2143260, while the sum is 53.

The square root of 159779663 is about 12640.3980554411. The cubic root of 159779663 is about 542.6342060742.

The spelling of 159779663 in words is "one hundred fifty-nine million, seven hundred seventy-nine thousand, six hundred sixty-three".