18061013325 has 24 divisors (see below), whose sum is σ = 29877678976. Its totient is φ = 9627120000.

The previous prime is 18061013309. The next prime is 18061013359. The reversal of 18061013325 is 52331016081.

It is not a de Polignac number, because 18061013325 - 2⁴ = 18061013309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18061013292 and 18061013301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68220 + ... + 201930.

Almost surely, 2^18061013325 is an apocalyptic number.

18061013325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18061013325 is a deficient number, since it is larger than the sum of its proper divisors (11816665651).

18061013325 is a wasteful number, since it uses less digits than its factorization.

18061013325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135525 (or 135520 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 18061013325 in words is "eighteen billion, sixty-one million, thirteen thousand, three hundred twenty-five".