255113631661603 has 16 divisors (see below), whose sum is σ = 306684008015616. Its totient is φ = 209102732727840.

The previous prime is 255113631661541. The next prime is 255113631661643. The reversal of 255113631661603 is 306166136311552.

It is a cyclic number.

It is not a de Polignac number, because 255113631661603 - 2¹³ = 255113631653411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255113631661643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20744312575 + ... + 20744324872.

It is an arithmetic number, because the mean of its divisors is an integer number (19167750500976).

Almost surely, 2^{255113631661603} is an apocalyptic number.

255113631661603 is a deficient number, since it is larger than the sum of its proper divisors (51570376354013).

255113631661603 is a wasteful number, since it uses less digits than its factorization.

255113631661603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41488637514.

The product of its (nonzero) digits is 1749600, while the sum is 49.

The spelling of 255113631661603 in words is "two hundred fifty-five trillion, one hundred thirteen billion, six hundred thirty-one million, six hundred sixty-one thousand, six hundred three".