257061155314 has 4 divisors (see below), whose sum is σ = 385591732974. Its totient is φ = 128530577656.

The previous prime is 257061155303. The next prime is 257061155339. The reversal of 257061155314 is 413551160752.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 236745499225 + 20315656089 = 486565^2 + 142533^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64265288827 + ... + 64265288830.

Almost surely, 2^257061155314 is an apocalyptic number.

257061155314 is a deficient number, since it is larger than the sum of its proper divisors (128530577660).

257061155314 is a wasteful number, since it uses less digits than its factorization.

257061155314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128530577659.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 257061155314 in words is "two hundred fifty-seven billion, sixty-one million, one hundred fifty-five thousand, three hundred fourteen".