8161822126 has 16 divisors (see below), whose sum is σ = 12280086000. Its totient is φ = 4068478528.

The previous prime is 8161822103. The next prime is 8161822127. The reversal of 8161822126 is 6212281618.

It is a super-3 number, since 3×8161822126³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8161822127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064061 + ... + 1071703.

It is an arithmetic number, because the mean of its divisors is an integer number (767505375).

Almost surely, 2^8161822126 is an apocalyptic number.

8161822126 is a deficient number, since it is larger than the sum of its proper divisors (4118263874).

8161822126 is a wasteful number, since it uses less digits than its factorization.

8161822126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9203.

The product of its digits is 18432, while the sum is 37.

The square root of 8161822126 is about 90342.8033990533. The cubic root of 8161822126 is about 2013.3952603705.

The spelling of 8161822126 in words is "eight billion, one hundred sixty-one million, eight hundred twenty-two thousand, one hundred twenty-six".