18525164506 has 8 divisors (see below), whose sum is σ = 27803096064. Its totient is φ = 9257465820.

The previous prime is 18525164473. The next prime is 18525164507. The reversal of 18525164506 is 60546152581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18525164507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553690 + ... + 2560933.

It is an arithmetic number, because the mean of its divisors is an integer number (3475387008).

Almost surely, 2^18525164506 is an apocalyptic number.

18525164506 is a deficient number, since it is larger than the sum of its proper divisors (9277931558).

18525164506 is a wasteful number, since it uses less digits than its factorization.

18525164506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5116436.

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 18525164506 in words is "eighteen billion, five hundred twenty-five million, one hundred sixty-four thousand, five hundred six".