556111728890 has 32 divisors (see below), whose sum is σ = 1023570101520. Its totient is φ = 217459666944.

The previous prime is 556111728881. The next prime is 556111728901. The reversal of 556111728890 is 98827111655.

It can be written as a sum of positive squares in 8 ways, for example, as 55163447161 + 500948281729 = 234869^2 + 707777^2 .

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Curzon 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, 1747175 + ... + 2040794.

Almost surely, 2^556111728890 is an apocalyptic number.

556111728890 is a deficient number, since it is larger than the sum of its proper divisors (467458372630).

556111728890 is a wasteful number, since it uses less digits than its factorization.

556111728890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788306.

The product of its (nonzero) digits is 1209600, while the sum is 53.

The spelling of 556111728890 in words is "five hundred fifty-six billion, one hundred eleven million, seven hundred twenty-eight thousand, eight hundred ninety".