556742733328 has 20 divisors (see below), whose sum is σ = 1080002943468. Its totient is φ = 278032296320.

The previous prime is 556742733317. The next prime is 556742733329. The reversal of 556742733328 is 823337247655.

It can be written as a sum of positive squares in 2 ways, for example, as 92289579264 + 464453154064 = 303792^2 + 681508^2 .

It is a super-2 number, since 2×556742733328² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (556742733329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21178351 + ... + 21204622.

Almost surely, 2^556742733328 is an apocalyptic number.

It is an amenable number.

556742733328 is a deficient number, since it is larger than the sum of its proper divisors (523260210140).

556742733328 is a wasteful number, since it uses less digits than its factorization.

556742733328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42383802 (or 42383796 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 55.

The spelling of 556742733328 in words is "five hundred fifty-six billion, seven hundred forty-two million, seven hundred thirty-three thousand, three hundred twenty-eight".