556723345628 has 6 divisors (see below), whose sum is σ = 974265854856. Its totient is φ = 278361672812.

The previous prime is 556723345621. The next prime is 556723345669. The reversal of 556723345628 is 826543327655.

It is a happy number.

It is a super-3 number, since 3×556723345628³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556723345621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69590418200 + ... + 69590418207.

It is an arithmetic number, because the mean of its divisors is an integer number (162377642476).

Almost surely, 2^556723345628 is an apocalyptic number.

It is an amenable number.

556723345628 is a deficient number, since it is larger than the sum of its proper divisors (417542509228).

556723345628 is a wasteful number, since it uses less digits than its factorization.

556723345628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139180836411 (or 139180836409 counting only the distinct ones).

The product of its digits is 36288000, while the sum is 56.

The spelling of 556723345628 in words is "five hundred fifty-six billion, seven hundred twenty-three million, three hundred forty-five thousand, six hundred twenty-eight".