858601824161 has 2 divisors, whose sum is σ = 858601824162. Its totient is φ = 858601824160.

The previous prime is 858601824151. The next prime is 858601824217. The reversal of 858601824161 is 161428106858.

858601824161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 635916933136 + 222684891025 = 797444^2 + 471895^2 .

It is a cyclic number.

It is not a de Polignac number, because 858601824161 - 2³⁴ = 841421954977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (858601824151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429300912080 + 429300912081.

It is an arithmetic number, because the mean of its divisors is an integer number (429300912081).

Almost surely, 2^858601824161 is an apocalyptic number.

It is an amenable number.

858601824161 is a deficient number, since it is larger than the sum of its proper divisors (1).

858601824161 is an equidigital number, since it uses as much as digits as its factorization.

858601824161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 737280, while the sum is 50.

The spelling of 858601824161 in words is "eight hundred fifty-eight billion, six hundred one million, eight hundred twenty-four thousand, one hundred sixty-one".