1640324868222 has 16 divisors (see below), whose sum is σ = 3280702044672. Its totient is φ = 546766238040.

The previous prime is 1640324868209. The next prime is 1640324868223. The reversal of 1640324868222 is 2228684230461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640324868223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1765804 + ... + 2529567.

It is an arithmetic number, because the mean of its divisors is an integer number (205043877792).

Almost surely, 2^{1640324868222} is an apocalyptic number.

1640324868222 is an abundant number, since it is smaller than the sum of its proper divisors (1640377176450).

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

1640324868222 is a wasteful number, since it uses less digits than its factorization.

1640324868222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359023.

The product of its (nonzero) digits is 1769472, while the sum is 48.

The spelling of 1640324868222 in words is "one trillion, six hundred forty billion, three hundred twenty-four million, eight hundred sixty-eight thousand, two hundred twenty-two".