18116261122 has 8 divisors (see below), whose sum is σ = 27443445372. Its totient is φ = 8968446000.

The previous prime is 18116261099. The next prime is 18116261147. The reversal of 18116261122 is 22116261181.

It can be written as a sum of positive squares in 2 ways, for example, as 11132149081 + 6984112041 = 105509^2 + 83571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44842029 + ... + 44842432.

Almost surely, 2^18116261122 is an apocalyptic number.

18116261122 is a deficient number, since it is larger than the sum of its proper divisors (9327184250).

18116261122 is a wasteful number, since it uses less digits than its factorization.

18116261122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89684564.

The product of its digits is 2304, while the sum is 31.

The spelling of 18116261122 in words is "eighteen billion, one hundred sixteen million, two hundred sixty-one thousand, one hundred twenty-two".