255617266946 has 4 divisors (see below), whose sum is σ = 383425900422. Its totient is φ = 127808633472.

The previous prime is 255617266943. The next prime is 255617266997. The reversal of 255617266946 is 649662716552.

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., 208950466321 + 46666800625 = 457111^2 + 216025^2 .

It is not an unprimeable number, because it can be changed into a prime (255617266943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63904316735 + ... + 63904316738.

Almost surely, 2^255617266946 is an apocalyptic number.

255617266946 is a deficient number, since it is larger than the sum of its proper divisors (127808633476).

255617266946 is a wasteful number, since it uses less digits than its factorization.

255617266946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127808633475.

The product of its digits is 32659200, while the sum is 59.

The spelling of 255617266946 in words is "two hundred fifty-five billion, six hundred seventeen million, two hundred sixty-six thousand, nine hundred forty-six".