128196799201 has 8 divisors (see below), whose sum is σ = 129959702504. Its totient is φ = 126434079360.

The previous prime is 128196799153. The next prime is 128196799219. The reversal of 128196799201 is 102997691821.

It can be written as a sum of positive squares in 4 ways, for example, as 19550750976 + 108646048225 = 139824^2 + 329615^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128196799201 - 2¹¹ = 128196797153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128196799271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1959031 + ... + 2023411.

It is an arithmetic number, because the mean of its divisors is an integer number (16244962813).

Almost surely, 2^128196799201 is an apocalyptic number.

It is an amenable number.

128196799201 is a deficient number, since it is larger than the sum of its proper divisors (1762903303).

128196799201 is an equidigital number, since it uses as much as digits as its factorization.

128196799201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91731.

The product of its (nonzero) digits is 979776, while the sum is 55.

The spelling of 128196799201 in words is "one hundred twenty-eight billion, one hundred ninety-six million, seven hundred ninety-nine thousand, two hundred one".