18032066625 has 16 divisors (see below), whose sum is σ = 30005359488. Its totient is φ = 9617102000.

The previous prime is 18032066597. The next prime is 18032066681. The reversal of 18032066625 is 52666023081.

It is not a de Polignac number, because 18032066625 - 2⁷ = 18032066497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24042381 + ... + 24043130.

It is an arithmetic number, because the mean of its divisors is an integer number (1875334968).

Almost surely, 2^18032066625 is an apocalyptic number.

18032066625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18032066625 is a deficient number, since it is larger than the sum of its proper divisors (11973292863).

18032066625 is an equidigital number, since it uses as much as digits as its factorization.

18032066625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48085529 (or 48085519 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 18032066625 in words is "eighteen billion, thirty-two million, sixty-six thousand, six hundred twenty-five".