257051055161164 has 48 divisors (see below), whose sum is σ = 507668346249120. Its totient is φ = 112809562557440.

The previous prime is 257051055161143. The next prime is 257051055161203. The reversal of 257051055161164 is 461161550150752.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49101342 + ... + 54083674.

It is an arithmetic number, because the mean of its divisors is an integer number (10576423880190).

Almost surely, 2^{257051055161164} is an apocalyptic number.

It is an amenable number.

257051055161164 is a deficient number, since it is larger than the sum of its proper divisors (250617291087956).

257051055161164 is a wasteful number, since it uses less digits than its factorization.

257051055161164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5022810 (or 5022808 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 49.

The spelling of 257051055161164 in words is "two hundred fifty-seven trillion, fifty-one billion, fifty-five million, one hundred sixty-one thousand, one hundred sixty-four".