255538916408 has 16 divisors (see below), whose sum is σ = 479574655560. Its totient is φ = 127652341600.

The previous prime is 255538916389. The next prime is 255538916449. The reversal of 255538916408 is 804619835552.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14630303 + ... + 14647758.

Almost surely, 2^255538916408 is an apocalyptic number.

It is an amenable number.

255538916408 is a deficient number, since it is larger than the sum of its proper divisors (224035739152).

255538916408 is a wasteful number, since it uses less digits than its factorization.

255538916408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29279158 (or 29279154 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 56.

The spelling of 255538916408 in words is "two hundred fifty-five billion, five hundred thirty-eight million, nine hundred sixteen thousand, four hundred eight".