8136116442 has 20 divisors (see below), whose sum is σ = 18230927946. Its totient is φ = 2712038760.

The previous prime is 8136116437. The next prime is 8136116449. The reversal of 8136116442 is 2446116318.

8136116442 is a `hidden beast` number, since 8 + 1 + 3 + 6 + 1 + 1 + 644 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7231971681 + 904144761 = 85041^2 + 30069^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8136116397 and 8136116406.

It is not an unprimeable number, because it can be changed into a prime (8136116449) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 25111309 + ... + 25111632.

Almost surely, 2^8136116442 is an apocalyptic number.

8136116442 is an abundant number, since it is smaller than the sum of its proper divisors (10094811504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8136116442 is a wasteful number, since it uses less digits than its factorization.

8136116442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50222955 (or 50222946 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 8136116442 is about 90200.4237351466. The cubic root of 8136116442 is about 2011.2793058807.

The spelling of 8136116442 in words is "eight billion, one hundred thirty-six million, one hundred sixteen thousand, four hundred forty-two".