208428527220 has 96 divisors (see below), whose sum is σ = 587482398720. Its totient is φ = 55211840640.

The previous prime is 208428527147. The next prime is 208428527239. The reversal of 208428527220 is 22725824802.

It is a congruent number.

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, 10633549 + ... + 10653131.

It is an arithmetic number, because the mean of its divisors is an integer number (6119608320).

Almost surely, 2^208428527220 is an apocalyptic number.

208428527220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208428527220 is an abundant number, since it is smaller than the sum of its proper divisors (379053871500).

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

208428527220 is a wasteful number, since it uses less digits than its factorization.

208428527220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20765 (or 20763 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 42.

The spelling of 208428527220 in words is "two hundred eight billion, four hundred twenty-eight million, five hundred twenty-seven thousand, two hundred twenty".