220648493448 has 128 divisors (see below), whose sum is σ = 650895523200. Its totient is φ = 69017260032.

The previous prime is 220648493423. The next prime is 220648493473. The reversal of 220648493448 is 844394846022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220648493423) and next prime (220648493473).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 220648493394 and 220648493403.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1148311 + ... + 1326617.

It is an arithmetic number, because the mean of its divisors is an integer number (5085121275).

Almost surely, 2^220648493448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220648493448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325447761600).

220648493448 is an abundant number, since it is smaller than the sum of its proper divisors (430247029752).

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

220648493448 is a wasteful number, since it uses less digits than its factorization.

220648493448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178676 (or 178666 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 54.

The spelling of 220648493448 in words is "two hundred twenty billion, six hundred forty-eight million, four hundred ninety-three thousand, four hundred forty-eight".