55386668394 has 24 divisors (see below), whose sum is σ = 120064200672. Its totient is φ = 18453030120.

The previous prime is 55386668377. The next prime is 55386668417. The reversal of 55386668394 is 49386668355.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 728854 + ... + 801249.

It is an arithmetic number, because the mean of its divisors is an integer number (5002675028).

Almost surely, 2^55386668394 is an apocalyptic number.

55386668394 is an abundant number, since it is smaller than the sum of its proper divisors (64677532278).

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

55386668394 is a wasteful number, since it uses less digits than its factorization.

55386668394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532122 (or 1532119 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 63.

The spelling of 55386668394 in words is "fifty-five billion, three hundred eighty-six million, six hundred sixty-eight thousand, three hundred ninety-four".