10205128080 has 720 divisors, whose sum is σ = 42258902400. Its totient is φ = 2204858880.

The previous prime is 10205128007. The next prime is 10205128081. The reversal of 10205128080 is 8082150201.

It is a tau number, because it is divible by the number of its divisors (720).

It is not an unprimeable number, because it can be changed into a prime (10205128081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 237328539 + ... + 237328581.

It is an arithmetic number, because the mean of its divisors is an integer number (58692920).

Almost surely, 2^10205128080 is an apocalyptic number.

10205128080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10205128080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21129451200).

10205128080 is an abundant number, since it is smaller than the sum of its proper divisors (32053774320).

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

10205128080 is a wasteful number, since it uses less digits than its factorization.

10205128080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

Adding to 10205128080 its reverse (8082150201), we get a palindrome (18287278281).

The spelling of 10205128080 in words is "ten billion, two hundred five million, one hundred twenty-eight thousand, eighty".