257954986417166 has 8 divisors (see below), whose sum is σ = 390921474261360. Its totient is φ = 127647828330048.

The previous prime is 257954986417159. The next prime is 257954986417187. The reversal of 257954986417166 is 661714689459752.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664832439026 + ... + 664832439413.

It is an arithmetic number, because the mean of its divisors is an integer number (48865184282670).

Almost surely, 2^{257954986417166} is an apocalyptic number.

257954986417166 is a deficient number, since it is larger than the sum of its proper divisors (132966487844194).

257954986417166 is a wasteful number, since it uses less digits than its factorization.

257954986417166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329664878538.

The product of its digits is 5486745600, while the sum is 80.

The spelling of 257954986417166 in words is "two hundred fifty-seven trillion, nine hundred fifty-four billion, nine hundred eighty-six million, four hundred seventeen thousand, one hundred sixty-six".