256265540354 has 16 divisors (see below), whose sum is σ = 397997074176. Its totient is φ = 123624824400.

The previous prime is 256265540341. The next prime is 256265540357. The reversal of 256265540354 is 453045562652.

It is a junction number, because it is equal to n+sod(n) for n = 256265540299 and 256265540308.

It is not an unprimeable number, because it can be changed into a prime (256265540357) 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, 6223157 + ... + 6264200.

It is an arithmetic number, because the mean of its divisors is an integer number (24874817136).

Almost surely, 2^256265540354 is an apocalyptic number.

256265540354 is a deficient number, since it is larger than the sum of its proper divisors (141731533822).

256265540354 is a wasteful number, since it uses less digits than its factorization.

256265540354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12487721.

The product of its (nonzero) digits is 4320000, while the sum is 47.

The spelling of 256265540354 in words is "two hundred fifty-six billion, two hundred sixty-five million, five hundred forty thousand, three hundred fifty-four".