202028768320 has 28 divisors (see below), whose sum is σ = 481081005324. Its totient is φ = 80811507200.

The previous prime is 202028768303. The next prime is 202028768327. The reversal of 202028768320 is 23867820202.

It can be written as a sum of positive squares in 2 ways, for example, as 160621402176 + 41407366144 = 400776^2 + 203488^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (202028768327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315669631 + ... + 315670270.

Almost surely, 2^202028768320 is an apocalyptic number.

202028768320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202028768320 is an abundant number, since it is smaller than the sum of its proper divisors (279052237004).

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

202028768320 is an equidigital number, since it uses as much as digits as its factorization.

202028768320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631339918 (or 631339908 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 202028768320 in words is "two hundred two billion, twenty-eight million, seven hundred sixty-eight thousand, three hundred twenty".