159664811 has 2 divisors, whose sum is σ = 159664812. Its totient is φ = 159664810.

The previous prime is 159664793. The next prime is 159664831. The reversal of 159664811 is 118466951.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 159664811 - 2¹⁰ = 159663787 is a prime.

It is not a weakly prime, because it can be changed into another prime (159664831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79832405 + 79832406.

It is an arithmetic number, because the mean of its divisors is an integer number (79832406).

Almost surely, 2^159664811 is an apocalyptic number.

159664811 is a deficient number, since it is larger than the sum of its proper divisors (1).

159664811 is an equidigital number, since it uses as much as digits as its factorization.

159664811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 41.

The square root of 159664811 is about 12635.8541856101. The cubic root of 159664811 is about 542.5041570607.

The spelling of 159664811 in words is "one hundred fifty-nine million, six hundred sixty-four thousand, eight hundred eleven".