8161243036101 has 6 divisors (see below), whose sum is σ = 11788462163270. Its totient is φ = 5440828690728.

The previous prime is 8161243036099. The next prime is 8161243036123. The reversal of 8161243036101 is 1016303421618.

8161243036101 is a `hidden beast` number, since 8 + 1 + 6 + 1 + 2 + 4 + 30 + 3 + 610 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6409246659201 + 1751996376900 = 2531649^2 + 1323630^2 .

It is not a de Polignac number, because 8161243036101 - 2¹ = 8161243036099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8161243036171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 453402390886 + ... + 453402390903.

Almost surely, 2^{8161243036101} is an apocalyptic number.

It is an amenable number.

8161243036101 is a deficient number, since it is larger than the sum of its proper divisors (3627219127169).

8161243036101 is a wasteful number, since it uses less digits than its factorization.

8161243036101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906804781795 (or 906804781792 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

Adding to 8161243036101 its reverse (1016303421618), we get a palindrome (9177546457719).

The spelling of 8161243036101 in words is "eight trillion, one hundred sixty-one billion, two hundred forty-three million, thirty-six thousand, one hundred one".