220181648 has 10 divisors (see below), whose sum is σ = 426601974. Its totient is φ = 110090816.

The previous prime is 220181609. The next prime is 220181677. The reversal of 220181648 is 846181022.

It is a happy number.

220181648 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 159466384 + 60715264 = 12628^2 + 7792^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6880661 + ... + 6880692.

Almost surely, 2^220181648 is an apocalyptic number.

It is an amenable number.

220181648 is a deficient number, since it is larger than the sum of its proper divisors (206420326).

220181648 is a wasteful number, since it uses less digits than its factorization.

220181648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13761361 (or 13761355 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 220181648 is about 14838.5190635723. The cubic root of 220181648 is about 603.8471756390.

The spelling of 220181648 in words is "two hundred twenty million, one hundred eighty-one thousand, six hundred forty-eight".