55564643831234 has 16 divisors (see below), whose sum is σ = 87733795732800. Its totient is φ = 26320050172944.

The previous prime is 55564643831143. The next prime is 55564643831273. The reversal of 55564643831234 is 43213834646555.

It is a happy number.

It is a Curzon number.

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, 37489979 + ... + 38943905.

It is an arithmetic number, because the mean of its divisors is an integer number (5483362233300).

Almost surely, 2^{55564643831234} is an apocalyptic number.

55564643831234 is a deficient number, since it is larger than the sum of its proper divisors (32169151901566).

55564643831234 is a wasteful number, since it uses less digits than its factorization.

55564643831234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459657.

The product of its digits is 124416000, while the sum is 59.

The spelling of 55564643831234 in words is "fifty-five trillion, five hundred sixty-four billion, six hundred forty-three million, eight hundred thirty-one thousand, two hundred thirty-four".