220848918149489 has 12 divisors (see below), whose sum is σ = 256939021139364. Its totient is φ = 189274656138624.

The previous prime is 220848918149471. The next prime is 220848918149507. The reversal of 220848918149489 is 984941819848022.

It is an interprime number because it is at equal distance from previous prime (220848918149471) and next prime (220848918149507).

It can be written as a sum of positive squares in 2 ways, for example, as 105859755259489 + 114989162890000 = 10288817^2 + 10723300^2 .

It is not a de Polignac number, because 220848918149489 - 2¹⁶ = 220848918083953 is a prime.

It is a super-2 number, since 2×220848918149489² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220848918149989) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 290289572 + ... + 291049365.

It is an arithmetic number, because the mean of its divisors is an integer number (21411585094947).

Almost surely, 2^{220848918149489} is an apocalyptic number.

It is an amenable number.

220848918149489 is a deficient number, since it is larger than the sum of its proper divisors (36090102989875).

220848918149489 is an equidigital number, since it uses as much as digits as its factorization.

220848918149489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581346704 (or 581346697 counting only the distinct ones).

The product of its (nonzero) digits is 764411904, while the sum is 77.

The spelling of 220848918149489 in words is "two hundred twenty trillion, eight hundred forty-eight billion, nine hundred eighteen million, one hundred forty-nine thousand, four hundred eighty-nine".