556106056121 has 8 divisors (see below), whose sum is σ = 693327031104. Its totient is φ = 433329394320.

The previous prime is 556106056111. The next prime is 556106056123. The reversal of 556106056121 is 121650601655.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 556106056121 - 2³⁰ = 555032314297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (556106056123) 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, 3611078210 + ... + 3611078363.

It is an arithmetic number, because the mean of its divisors is an integer number (86665878888).

Almost surely, 2^556106056121 is an apocalyptic number.

It is an amenable number.

556106056121 is a deficient number, since it is larger than the sum of its proper divisors (137220974983).

556106056121 is a wasteful number, since it uses less digits than its factorization.

556106056121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7222156591.

The product of its (nonzero) digits is 54000, while the sum is 38.

Adding to 556106056121 its reverse (121650601655), we get a palindrome (677756657776).

The spelling of 556106056121 in words is "five hundred fifty-six billion, one hundred six million, fifty-six thousand, one hundred twenty-one".