55619346218 has 16 divisors (see below), whose sum is σ = 84403347840. Its totient is φ = 27486098496.

The previous prime is 55619346193. The next prime is 55619346241. The reversal of 55619346218 is 81264391655.

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, 207458 + ... + 392781.

It is an arithmetic number, because the mean of its divisors is an integer number (5275209240).

Almost surely, 2^55619346218 is an apocalyptic number.

55619346218 is a deficient number, since it is larger than the sum of its proper divisors (28784001622).

55619346218 is a wasteful number, since it uses less digits than its factorization.

55619346218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600781.

The product of its digits is 1555200, while the sum is 50.

The spelling of 55619346218 in words is "fifty-five billion, six hundred nineteen million, three hundred forty-six thousand, two hundred eighteen".