2126600556 has 12 divisors (see below), whose sum is σ = 4962067992. Its totient is φ = 708866848.

The previous prime is 2126600513. The next prime is 2126600557. The reversal of 2126600556 is 6550066212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2126600557) 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, 88608345 + ... + 88608368.

It is an arithmetic number, because the mean of its divisors is an integer number (413505666).

Almost surely, 2^2126600556 is an apocalyptic number.

It is an amenable number.

2126600556 is an abundant number, since it is smaller than the sum of its proper divisors (2835467436).

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

2126600556 is a wasteful number, since it uses less digits than its factorization.

2126600556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177216720 (or 177216718 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2126600556 is about 46115.0794859989. The cubic root of 2126600556 is about 1285.9634970817.

Adding to 2126600556 its reverse (6550066212), we get a palindrome (8676666768).

The spelling of 2126600556 in words is "two billion, one hundred twenty-six million, six hundred thousand, five hundred fifty-six".