18060133547 has 4 divisors (see below), whose sum is σ = 18114696216. Its totient is φ = 18005570880.

The previous prime is 18060133541. The next prime is 18060133573. The reversal of 18060133547 is 74533106081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18060133547 - 2¹⁰ = 18060132523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18060133547.

It is not an unprimeable number, because it can be changed into a prime (18060133541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27280838 + ... + 27281499.

It is an arithmetic number, because the mean of its divisors is an integer number (4528674054).

Almost surely, 2^18060133547 is an apocalyptic number.

18060133547 is a deficient number, since it is larger than the sum of its proper divisors (54562669).

18060133547 is an equidigital number, since it uses as much as digits as its factorization.

18060133547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54562668.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 18060133547 in words is "eighteen billion, sixty million, one hundred thirty-three thousand, five hundred forty-seven".