18120623332 has 48 divisors (see below), whose sum is σ = 36383226880. Its totient is φ = 7735629600.

The previous prime is 18120623299. The next prime is 18120623351. The reversal of 18120623332 is 23332602181.

It is a junction number, because it is equal to n+sod(n) for n = 18120623294 and 18120623303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9895657 + ... + 9897487.

Almost surely, 2^18120623332 is an apocalyptic number.

It is an amenable number.

18120623332 is an abundant number, since it is smaller than the sum of its proper divisors (18262603548).

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

18120623332 is a wasteful number, since it uses less digits than its factorization.

18120623332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3032 (or 3030 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 18120623332 in words is "eighteen billion, one hundred twenty million, six hundred twenty-three thousand, three hundred thirty-two".