256453403206 has 256 divisors, whose sum is σ = 543894994944. Its totient is φ = 87480000000.

The previous prime is 256453403177. The next prime is 256453403233. The reversal of 256453403206 is 602304354652.

256453403206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256453403206² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1021726581 + ... + 1021726831.

It is an arithmetic number, because the mean of its divisors is an integer number (2124589824).

Almost surely, 2^256453403206 is an apocalyptic number.

256453403206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

256453403206 is an abundant number, since it is smaller than the sum of its proper divisors (287441591738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256453403206 is a wasteful number, since it uses less digits than its factorization.

256453403206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579.

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 256453403206 its reverse (602304354652), we get a palindrome (858757757858).

The spelling of 256453403206 in words is "two hundred fifty-six billion, four hundred fifty-three million, four hundred three thousand, two hundred six".