2555947668 has 12 divisors (see below), whose sum is σ = 5963877920. Its totient is φ = 851982552.

The previous prime is 2555947633. The next prime is 2555947687. The reversal of 2555947668 is 8667495552.

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

It is a congruent number.

It is an unprimeable number.

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, 106497808 + ... + 106497831.

Almost surely, 2^2555947668 is an apocalyptic number.

It is an amenable number.

2555947668 is an abundant number, since it is smaller than the sum of its proper divisors (3407930252).

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

2555947668 is a wasteful number, since it uses less digits than its factorization.

2555947668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212995646 (or 212995644 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 57.

The square root of 2555947668 is about 50556.3810809279. The cubic root of 2555947668 is about 1367.2585646600.

The spelling of 2555947668 in words is "two billion, five hundred fifty-five million, nine hundred forty-seven thousand, six hundred sixty-eight".