5661576556 has 12 divisors (see below), whose sum is σ = 9909428760. Its totient is φ = 2830311200.

The previous prime is 5661576493. The next prime is 5661576559. The reversal of 5661576556 is 6556751665.

It is a super-2 number, since 2×5661576556² = 64106898198897642272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5661576559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91870 + ... + 140581.

It is an arithmetic number, because the mean of its divisors is an integer number (825785730).

Almost surely, 2^5661576556 is an apocalyptic number.

It is an amenable number.

5661576556 is a deficient number, since it is larger than the sum of its proper divisors (4247852204).

5661576556 is a wasteful number, since it uses less digits than its factorization.

5661576556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238544 (or 238542 counting only the distinct ones).

The product of its digits is 5670000, while the sum is 52.

The square root of 5661576556 is about 75243.4485918874. The cubic root of 5661576556 is about 1782.2931094924.

The spelling of 5661576556 in words is "five billion, six hundred sixty-one million, five hundred seventy-six thousand, five hundred fifty-six".