8442161541 has 12 divisors (see below), whose sum is σ = 13302800160. Its totient is φ = 5116461480.

The previous prime is 8442161531. The next prime is 8442161543. The reversal of 8442161541 is 1451612448.

8442161541 is a `hidden beast` number, since 8 + 442 + 161 + 54 + 1 = 666.

It is not a de Polignac number, because 8442161541 - 2⁵ = 8442161509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8442161496 and 8442161505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8442161543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42637081 + ... + 42637278.

It is an arithmetic number, because the mean of its divisors is an integer number (1108566680).

Almost surely, 2^8442161541 is an apocalyptic number.

It is an amenable number.

8442161541 is a deficient number, since it is larger than the sum of its proper divisors (4860638619).

8442161541 is a wasteful number, since it uses less digits than its factorization.

8442161541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85274376 (or 85274373 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 8442161541 is about 91881.2360659128. The cubic root of 8442161541 is about 2036.1880580606.

Adding to 8442161541 its reverse (1451612448), we get a palindrome (9893773989).

The spelling of 8442161541 in words is "eight billion, four hundred forty-two million, one hundred sixty-one thousand, five hundred forty-one".