2106600128 has 28 divisors (see below), whose sum is σ = 4237558200. Its totient is φ = 1038868992.

The previous prime is 2106600121. The next prime is 2106600149. The reversal of 2106600128 is 8210066012.

It is a junction number, because it is equal to n+sod(n) for n = 2106600097 and 2106600106.

It is not an unprimeable number, because it can be changed into a prime (2106600121) 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 3 ways as a sum of consecutive naturals, for example, 220778 + ... + 230121.

Almost surely, 2^2106600128 is an apocalyptic number.

It is an amenable number.

2106600128 is an abundant number, since it is smaller than the sum of its proper divisors (2130958072).

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

2106600128 is an equidigital number, since it uses as much as digits as its factorization.

2106600128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450984 (or 450974 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2106600128 is about 45897.7137556981. The cubic root of 2106600128 is about 1281.9193470824.

The spelling of 2106600128 in words is "two billion, one hundred six million, six hundred thousand, one hundred twenty-eight".