256040005655270 has 32 divisors (see below), whose sum is σ = 487141412899680. Its totient is φ = 96623090127360.

The previous prime is 256040005655167. The next prime is 256040005655281. The reversal of 256040005655270 is 72556500040652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2795761217 + ... + 2795852796.

It is an arithmetic number, because the mean of its divisors is an integer number (15223169153115).

Almost surely, 2^{256040005655270} is an apocalyptic number.

256040005655270 is a deficient number, since it is larger than the sum of its proper divisors (231101407244410).

256040005655270 is a wasteful number, since it uses less digits than its factorization.

256040005655270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5591614280.

The product of its (nonzero) digits is 2520000, while the sum is 47.

The spelling of 256040005655270 in words is "two hundred fifty-six trillion, forty billion, five million, six hundred fifty-five thousand, two hundred seventy".