18459556219416 has 32 divisors (see below), whose sum is σ = 49698805206960. Its totient is φ = 5679863452032.

The previous prime is 18459556219333. The next prime is 18459556219457. The reversal of 18459556219416 is 61491265595481.

It is a congruent number.

It is an unprimeable number.

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, 29582621835 + ... + 29582622458.

Almost surely, 2^{18459556219416} is an apocalyptic number.

It is an amenable number.

18459556219416 is an abundant number, since it is smaller than the sum of its proper divisors (31239248987544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18459556219416 is a wasteful number, since it uses less digits than its factorization.

18459556219416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59165244315 (or 59165244311 counting only the distinct ones).

The product of its digits is 93312000, while the sum is 66.

The spelling of 18459556219416 in words is "eighteen trillion, four hundred fifty-nine billion, five hundred fifty-six million, two hundred nineteen thousand, four hundred sixteen".