256532204722 has 16 divisors (see below), whose sum is σ = 396462171672. Its totient is φ = 124414314880.

The previous prime is 256532204717. The next prime is 256532204729. The reversal of 256532204722 is 227402235652.

It can be written as a sum of positive squares in 4 ways, for example, as 131449028481 + 125083176241 = 362559^2 + 353671^2 .

It is not an unprimeable number, because it can be changed into a prime (256532204729) 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, 9027553 + ... + 9055924.

Almost surely, 2^256532204722 is an apocalyptic number.

256532204722 is a deficient number, since it is larger than the sum of its proper divisors (139929966950).

256532204722 is a wasteful number, since it uses less digits than its factorization.

256532204722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18083693.

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 256532204722 in words is "two hundred fifty-six billion, five hundred thirty-two million, two hundred four thousand, seven hundred twenty-two".