163585334501 has 2 divisors, whose sum is σ = 163585334502. Its totient is φ = 163585334500.

The previous prime is 163585334453. The next prime is 163585334503. The reversal of 163585334501 is 105433585361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87823322500 + 75762012001 = 296350^2 + 275249^2 .

It is a cyclic number.

It is not a de Polignac number, because 163585334501 - 2²² = 163581140197 is a prime.

Together with 163585334503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163585334503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81792667250 + 81792667251.

It is an arithmetic number, because the mean of its divisors is an integer number (81792667251).

Almost surely, 2^163585334501 is an apocalyptic number.

It is an amenable number.

163585334501 is a deficient number, since it is larger than the sum of its proper divisors (1).

163585334501 is an equidigital number, since it uses as much as digits as its factorization.

163585334501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 163585334501 in words is "one hundred sixty-three billion, five hundred eighty-five million, three hundred thirty-four thousand, five hundred one".