220629648568 has 32 divisors (see below), whose sum is σ = 493333378560. Its totient is φ = 90444451680.

The previous prime is 220629648559. The next prime is 220629648719. The reversal of 220629648568 is 865846926022.

220629648568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85646868 + ... + 85649443.

It is an arithmetic number, because the mean of its divisors is an integer number (15416668080).

Almost surely, 2^220629648568 is an apocalyptic number.

220629648568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

220629648568 is an abundant number, since it is smaller than the sum of its proper divisors (272703729992).

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

220629648568 is a wasteful number, since it uses less digits than its factorization.

220629648568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171296347 (or 171296343 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 58.

The spelling of 220629648568 in words is "two hundred twenty billion, six hundred twenty-nine million, six hundred forty-eight thousand, five hundred sixty-eight".