18241122916 has 6 divisors (see below), whose sum is σ = 31921965110. Its totient is φ = 9120561456.

The previous prime is 18241122853. The next prime is 18241122929. The reversal of 18241122916 is 61922114281.

It can be written as a sum of positive squares in only one way, i.e., 17806233600 + 434889316 = 133440^2 + 20854^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2280140361 + ... + 2280140368.

Almost surely, 2^18241122916 is an apocalyptic number.

It is an amenable number.

18241122916 is a deficient number, since it is larger than the sum of its proper divisors (13680842194).

18241122916 is a wasteful number, since it uses less digits than its factorization.

18241122916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4560280733 (or 4560280731 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The spelling of 18241122916 in words is "eighteen billion, two hundred forty-one million, one hundred twenty-two thousand, nine hundred sixteen".