256115662 has 8 divisors (see below), whose sum is σ = 419098392. Its totient is φ = 116416200.

The previous prime is 256115633. The next prime is 256115669. The reversal of 256115662 is 266511652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256115669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5820789 + ... + 5820832.

It is an arithmetic number, because the mean of its divisors is an integer number (52387299).

Almost surely, 2^256115662 is an apocalyptic number.

256115662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256115662 is a deficient number, since it is larger than the sum of its proper divisors (162982730).

256115662 is a wasteful number, since it uses less digits than its factorization.

256115662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11641634.

The product of its digits is 21600, while the sum is 34.

The square root of 256115662 is about 16003.6140293372. The cubic root of 256115662 is about 635.0560324210.

The spelling of 256115662 in words is "two hundred fifty-six million, one hundred fifteen thousand, six hundred sixty-two".