255305660171 has 8 divisors (see below), whose sum is σ = 268748950080. Its totient is φ = 241862985288.

The previous prime is 255305660123. The next prime is 255305660173. The reversal of 255305660171 is 171066503552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255305660171 - 2¹⁴ = 255305643787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255305660173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874820 + ... + 1129566.

It is an arithmetic number, because the mean of its divisors is an integer number (33593618760).

Almost surely, 2^255305660171 is an apocalyptic number.

255305660171 is a deficient number, since it is larger than the sum of its proper divisors (13443289909).

255305660171 is a wasteful number, since it uses less digits than its factorization.

255305660171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307513.

The product of its (nonzero) digits is 189000, while the sum is 41.

The spelling of 255305660171 in words is "two hundred fifty-five billion, three hundred five million, six hundred sixty thousand, one hundred seventy-one".