646210546246222 has 4 divisors (see below), whose sum is σ = 969315819369336. Its totient is φ = 323105273123110.

The previous prime is 646210546246127. The next prime is 646210546246399. The reversal of 646210546246222 is 222642645012646.

646210546246222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 646210546246222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161552636561554 + ... + 161552636561557.

It is an arithmetic number, because the mean of its divisors is an integer number (242328954842334).

Almost surely, 2^{646210546246222} is an apocalyptic number.

646210546246222 is a deficient number, since it is larger than the sum of its proper divisors (323105273123114).

646210546246222 is a wasteful number, since it uses less digits than its factorization.

646210546246222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323105273123113.

The product of its (nonzero) digits is 13271040, while the sum is 52.

The spelling of 646210546246222 in words is "six hundred forty-six trillion, two hundred ten billion, five hundred forty-six million, two hundred forty-six thousand, two hundred twenty-two".