161000895001 has 4 divisors (see below), whose sum is σ = 161004836404. Its totient is φ = 160996953600.

The previous prime is 161000894941. The next prime is 161000895019. The reversal of 161000895001 is 100598000161.

161000895001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100598000161 = 599 ⋅167943239.

It can be written as a sum of positive squares in 2 ways, for example, as 34922639376 + 126078255625 = 186876^2 + 355075^2 .

It is a cyclic number.

It is not a de Polignac number, because 161000895001 - 2¹⁵ = 161000862233 is a prime.

It is a super-2 number, since 2×161000895001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161000895071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1908780 + ... + 1991341.

It is an arithmetic number, because the mean of its divisors is an integer number (40251209101).

Almost surely, 2^161000895001 is an apocalyptic number.

It is an amenable number.

161000895001 is a deficient number, since it is larger than the sum of its proper divisors (3941403).

161000895001 is an equidigital number, since it uses as much as digits as its factorization.

161000895001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3941402.

The product of its (nonzero) digits is 2160, while the sum is 31.

Adding to 161000895001 its reverse (100598000161), we get a palindrome (261598895162).

The spelling of 161000895001 in words is "one hundred sixty-one billion, eight hundred ninety-five thousand, one".