256966006 has 24 divisors (see below), whose sum is σ = 437355072. Its totient is φ = 113031600.

The previous prime is 256965953. The next prime is 256966007. The reversal of 256966006 is 600669652.

It is a self number, because there is not a number n which added to its sum of digits gives 256966006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256966007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9625 + ... + 24628.

It is an arithmetic number, because the mean of its divisors is an integer number (18223128).

Almost surely, 2^256966006 is an apocalyptic number.

256966006 is a deficient number, since it is larger than the sum of its proper divisors (180389066).

256966006 is a wasteful number, since it uses less digits than its factorization.

256966006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34308 (or 34297 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 256966006 is about 16030.1592630891. The cubic root of 256966006 is about 635.7580844244.

The spelling of 256966006 in words is "two hundred fifty-six million, nine hundred sixty-six thousand, six".