255166466587 has 2 divisors, whose sum is σ = 255166466588. Its totient is φ = 255166466586.

The previous prime is 255166466573. The next prime is 255166466609. The reversal of 255166466587 is 785664661552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255166466587 - 2³¹ = 253018982939 is a prime.

It is not a weakly prime, because it can be changed into another prime (255166466887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127583233293 + 127583233294.

It is an arithmetic number, because the mean of its divisors is an integer number (127583233294).

Almost surely, 2^255166466587 is an apocalyptic number.

255166466587 is a deficient number, since it is larger than the sum of its proper divisors (1).

255166466587 is an equidigital number, since it uses as much as digits as its factorization.

255166466587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576000, while the sum is 61.

The spelling of 255166466587 in words is "two hundred fifty-five billion, one hundred sixty-six million, four hundred sixty-six thousand, five hundred eighty-seven".