256683315080534 has 16 divisors (see below), whose sum is σ = 387140698387872. Its totient is φ = 127638061458048.

The previous prime is 256683315080503. The next prime is 256683315080587. The reversal of 256683315080534 is 435080513386652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411147689 + ... + 411771524.

It is an arithmetic number, because the mean of its divisors is an integer number (24196293649242).

Almost surely, 2^{256683315080534} is an apocalyptic number.

256683315080534 is a deficient number, since it is larger than the sum of its proper divisors (130457383307338).

256683315080534 is a wasteful number, since it uses less digits than its factorization.

256683315080534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822920071.

The product of its (nonzero) digits is 62208000, while the sum is 59.

The spelling of 256683315080534 in words is "two hundred fifty-six trillion, six hundred eighty-three billion, three hundred fifteen million, eighty thousand, five hundred thirty-four".