642056222650246 has 8 divisors (see below), whose sum is σ = 963425974400280. Its totient is φ = 320914231183488.

The previous prime is 642056222650189. The next prime is 642056222650267.

642056222650246 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 642056222650193 and 642056222650202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56940063771 + ... + 56940075046.

It is an arithmetic number, because the mean of its divisors is an integer number (120428246800035).

Almost surely, 2^{642056222650246} is an apocalyptic number.

642056222650246 is a deficient number, since it is larger than the sum of its proper divisors (321369751750034).

642056222650246 is a wasteful number, since it uses less digits than its factorization.

642056222650246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113880141638.

The product of its (nonzero) digits is 16588800, while the sum is 52.

The spelling of 642056222650246 in words is "six hundred forty-two trillion, fifty-six billion, two hundred twenty-two million, six hundred fifty thousand, two hundred forty-six".