1648221005522 has 40 divisors (see below), whose sum is σ = 3106077962316. Its totient is φ = 652043450016.

The previous prime is 1648221005491. The next prime is 1648221005579. The reversal of 1648221005522 is 2255001228461.

It can be written as a sum of positive squares in 2 ways, for example, as 1225358227681 + 422862777841 = 1106959^2 + 650279^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13138973 + ... + 13263824.

Almost surely, 2^{1648221005522} is an apocalyptic number.

1648221005522 is a deficient number, since it is larger than the sum of its proper divisors (1457856956794).

1648221005522 is an equidigital number, since it uses as much as digits as its factorization.

1648221005522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26402840 (or 26402819 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 1648221005522 in words is "one trillion, six hundred forty-eight billion, two hundred twenty-one million, five thousand, five hundred twenty-two".