256610262134 has 16 divisors (see below), whose sum is σ = 407673023328. Its totient is φ = 120723533952.

The previous prime is 256610262133. The next prime is 256610262173. The reversal of 256610262134 is 431262016652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256610262131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948002 + ... + 1188245.

It is an arithmetic number, because the mean of its divisors is an integer number (25479563958).

Almost surely, 2^256610262134 is an apocalyptic number.

256610262134 is a deficient number, since it is larger than the sum of its proper divisors (151062761194).

256610262134 is a wasteful number, since it uses less digits than its factorization.

256610262134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139799.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 256610262134 its reverse (431262016652), we get a palindrome (687872278786).

The spelling of 256610262134 in words is "two hundred fifty-six billion, six hundred ten million, two hundred sixty-two thousand, one hundred thirty-four".