255387365604 has 144 divisors (see below), whose sum is σ = 785113056000. Its totient is φ = 68330262528.

The previous prime is 255387365581. The next prime is 255387365633. The reversal of 255387365604 is 406563783552.

255387365604 is a `hidden beast` number, since 2 + 5 + 5 + 3 + 8 + 73 + 6 + 560 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 702732 + ... + 1002300.

It is an arithmetic number, because the mean of its divisors is an integer number (5452174000).

Almost surely, 2^255387365604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255387365604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392556528000).

255387365604 is an abundant number, since it is smaller than the sum of its proper divisors (529725690396).

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

255387365604 is a wasteful number, since it uses less digits than its factorization.

255387365604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299802 (or 299797 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 54.

The spelling of 255387365604 in words is "two hundred fifty-five billion, three hundred eighty-seven million, three hundred sixty-five thousand, six hundred four".