55618630338 has 8 divisors (see below), whose sum is σ = 111237260688. Its totient is φ = 18539543444.

The previous prime is 55618630303. The next prime is 55618630357. The reversal of 55618630338 is 83303681655.

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

55618630338 is an admirable number.

It is an unprimeable number.

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, 4634885856 + ... + 4634885867.

It is an arithmetic number, because the mean of its divisors is an integer number (13904657586).

Almost surely, 2^55618630338 is an apocalyptic number.

55618630338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55618630338 is a wasteful number, since it uses less digits than its factorization.

55618630338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9269771728.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 55618630338 in words is "fifty-five billion, six hundred eighteen million, six hundred thirty thousand, three hundred thirty-eight".