256601116 has 6 divisors (see below), whose sum is σ = 449051960. Its totient is φ = 128300556.

The previous prime is 256601113. The next prime is 256601123. The reversal of 256601116 is 611106652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256601113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32075136 + ... + 32075143.

Almost surely, 2^256601116 is an apocalyptic number.

It is an amenable number.

256601116 is a deficient number, since it is larger than the sum of its proper divisors (192450844).

256601116 is a wasteful number, since it uses less digits than its factorization.

256601116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64150283 (or 64150281 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 256601116 is about 16018.7738606923. The cubic root of 256601116 is about 635.4570178074.

Adding to 256601116 its reverse (611106652), we get a palindrome (867707768).

The spelling of 256601116 in words is "two hundred fifty-six million, six hundred one thousand, one hundred sixteen".