1646223322002 has 16 divisors (see below), whose sum is σ = 3762796164672. Its totient is φ = 470349520560.

The previous prime is 1646223321973. The next prime is 1646223322019. The reversal of 1646223322002 is 2002233226461.

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 7 ways as a sum of consecutive naturals, for example, 19597896649 + ... + 19597896732.

It is an arithmetic number, because the mean of its divisors is an integer number (235174760292).

Almost surely, 2^{1646223322002} is an apocalyptic number.

1646223322002 is an abundant number, since it is smaller than the sum of its proper divisors (2116572842670).

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

1646223322002 is a wasteful number, since it uses less digits than its factorization.

1646223322002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39195793393.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 1646223322002 its reverse (2002233226461), we get a palindrome (3648456548463).

The spelling of 1646223322002 in words is "one trillion, six hundred forty-six billion, two hundred twenty-three million, three hundred twenty-two thousand, two".