254700656171 has 4 divisors (see below), whose sum is σ = 274293014352. Its totient is φ = 235108297992.

The previous prime is 254700656141. The next prime is 254700656183. The reversal of 254700656171 is 171656007452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254700656171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254700656101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9796179071 + ... + 9796179096.

It is an arithmetic number, because the mean of its divisors is an integer number (68573253588).

Almost surely, 2^254700656171 is an apocalyptic number.

254700656171 is a deficient number, since it is larger than the sum of its proper divisors (19592358181).

254700656171 is a wasteful number, since it uses less digits than its factorization.

254700656171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19592358180.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 254700656171 in words is "two hundred fifty-four billion, seven hundred million, six hundred fifty-six thousand, one hundred seventy-one".