5661546556 has 6 divisors (see below), whose sum is σ = 9907706480. Its totient is φ = 2830773276.

The previous prime is 5661546551. The next prime is 5661546581. The reversal of 5661546556 is 6556451665.

It is a super-2 number, since 2×5661546556² = 64106218811510922272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661546551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 707693316 + ... + 707693323.

Almost surely, 2^5661546556 is an apocalyptic number.

It is an amenable number.

5661546556 is a deficient number, since it is larger than the sum of its proper divisors (4246159924).

5661546556 is a wasteful number, since it uses less digits than its factorization.

5661546556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415386643 (or 1415386641 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 49.

The square root of 5661546556 is about 75243.2492387191. The cubic root of 5661546556 is about 1782.2899614359.

The spelling of 5661546556 in words is "five billion, six hundred sixty-one million, five hundred forty-six thousand, five hundred fifty-six".