161026217127 has 6 divisors (see below), whose sum is σ = 232593424752. Its totient is φ = 107350811412.

The previous prime is 161026217101. The next prime is 161026217129. The reversal of 161026217127 is 721712620161.

161026217127 is a `hidden beast` number, since 1 + 6 + 1 + 0 + 2 + 621 + 7 + 1 + 27 = 666.

It is not a de Polignac number, because 161026217127 - 2⁷ = 161026216999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161026217091 and 161026217100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161026217129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8945900943 + ... + 8945900960.

It is an arithmetic number, because the mean of its divisors is an integer number (38765570792).

Almost surely, 2^161026217127 is an apocalyptic number.

161026217127 is a deficient number, since it is larger than the sum of its proper divisors (71567207625).

161026217127 is a wasteful number, since it uses less digits than its factorization.

161026217127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17891801909 (or 17891801906 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

Adding to 161026217127 its reverse (721712620161), we get a palindrome (882738837288).

The spelling of 161026217127 in words is "one hundred sixty-one billion, twenty-six million, two hundred seventeen thousand, one hundred twenty-seven".