251262650606 has 32 divisors (see below), whose sum is σ = 442479581280. Its totient is φ = 105729868800.

The previous prime is 251262650603. The next prime is 251262650647. The reversal of 251262650606 is 606056262152.

251262650606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251262650603) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5483951 + ... + 5529578.

It is an arithmetic number, because the mean of its divisors is an integer number (13827486915).

Almost surely, 2^251262650606 is an apocalyptic number.

251262650606 is a deficient number, since it is larger than the sum of its proper divisors (191216930674).

251262650606 is a wasteful number, since it uses less digits than its factorization.

251262650606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11013620.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 251262650606 in words is "two hundred fifty-one billion, two hundred sixty-two million, six hundred fifty thousand, six hundred six".