257150227156 has 6 divisors (see below), whose sum is σ = 450012897530. Its totient is φ = 128575113576.

The previous prime is 257150227129. The next prime is 257150227207. The reversal of 257150227156 is 651722051752.

It can be written as a sum of positive squares in only one way, i.e., 214748828100 + 42401399056 = 463410^2 + 205916^2 .

It is a super-2 number, since 2×257150227156² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32143778391 + ... + 32143778398.

Almost surely, 2^257150227156 is an apocalyptic number.

It is an amenable number.

257150227156 is a deficient number, since it is larger than the sum of its proper divisors (192862670374).

257150227156 is a wasteful number, since it uses less digits than its factorization.

257150227156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64287556793 (or 64287556791 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 257150227156 in words is "two hundred fifty-seven billion, one hundred fifty million, two hundred twenty-seven thousand, one hundred fifty-six".