18546159964 has 24 divisors (see below), whose sum is σ = 32528563200. Its totient is φ = 9252311040.

The previous prime is 18546159959. The next prime is 18546159967. The reversal of 18546159964 is 46995164581.

It is a junction number, because it is equal to n+sod(n) for n = 18546159899 and 18546159908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18546159967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4136604 + ... + 4141084.

It is an arithmetic number, because the mean of its divisors is an integer number (1355356800).

Almost surely, 2^18546159964 is an apocalyptic number.

It is an amenable number.

18546159964 is a deficient number, since it is larger than the sum of its proper divisors (13982403236).

18546159964 is a wasteful number, since it uses less digits than its factorization.

18546159964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6573 (or 6571 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 58.

The spelling of 18546159964 in words is "eighteen billion, five hundred forty-six million, one hundred fifty-nine thousand, nine hundred sixty-four".