4221646431266 has 8 divisors (see below), whose sum is σ = 6908148705744. Its totient is φ = 1918930196020.

The previous prime is 4221646431257. The next prime is 4221646431281. The reversal of 4221646431266 is 6621346461224.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4221646431266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95946509780 + ... + 95946509823.

It is an arithmetic number, because the mean of its divisors is an integer number (863518588218).

Almost surely, 2^{4221646431266} is an apocalyptic number.

4221646431266 is a deficient number, since it is larger than the sum of its proper divisors (2686502274478).

4221646431266 is a wasteful number, since it uses less digits than its factorization.

4221646431266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191893019616.

The product of its digits is 1990656, while the sum is 47.

The spelling of 4221646431266 in words is "four trillion, two hundred twenty-one billion, six hundred forty-six million, four hundred thirty-one thousand, two hundred sixty-six".