55417167218 has 16 divisors (see below), whose sum is σ = 95029612800. Its totient is φ = 23743025856.

The previous prime is 55417167139. The next prime is 55417167263. The reversal of 55417167218 is 81276171455.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551018 + ... + 643781.

It is an arithmetic number, because the mean of its divisors is an integer number (5939350800).

Almost surely, 2^55417167218 is an apocalyptic number.

55417167218 is a deficient number, since it is larger than the sum of its proper divisors (39612445582).

55417167218 is a wasteful number, since it uses less digits than its factorization.

55417167218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198121.

The product of its digits is 470400, while the sum is 47.

The spelling of 55417167218 in words is "fifty-five billion, four hundred seventeen million, one hundred sixty-seven thousand, two hundred eighteen".