5666110651556 has 24 divisors (see below), whose sum is σ = 9919579581240. Its totient is φ = 2831945260032.

The previous prime is 5666110651549. The next prime is 5666110651559. The reversal of 5666110651556 is 6551560116665.

It can be written as a sum of positive squares in 4 ways, for example, as 59065525156 + 5607045126400 = 243034^2 + 2367920^2 .

It is a super-2 number, since 2×5666110651556² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5666110651498 and 5666110651507.

It is not an unprimeable number, because it can be changed into a prime (5666110651559) 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, 154333730 + ... + 154370438.

It is an arithmetic number, because the mean of its divisors is an integer number (413315815885).

Almost surely, 2^{5666110651556} is an apocalyptic number.

It is an amenable number.

5666110651556 is a deficient number, since it is larger than the sum of its proper divisors (4253468929684).

5666110651556 is a wasteful number, since it uses less digits than its factorization.

5666110651556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50783 (or 50781 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 53.

The spelling of 5666110651556 in words is "five trillion, six hundred sixty-six billion, one hundred ten million, six hundred fifty-one thousand, five hundred fifty-six".