5661515115556 has 24 divisors (see below), whose sum is σ = 9915364942560. Its totient is φ = 2828554115712.

The previous prime is 5661515115547. The next prime is 5661515115577. The reversal of 5661515115556 is 6555115151665.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62057631 + ... + 62148793.

It is an arithmetic number, because the mean of its divisors is an integer number (413140205940).

Almost surely, 2^{5661515115556} is an apocalyptic number.

It is an amenable number.

5661515115556 is a deficient number, since it is larger than the sum of its proper divisors (4253849827004).

5661515115556 is a wasteful number, since it uses less digits than its factorization.

5661515115556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103083 (or 103081 counting only the distinct ones).

The product of its digits is 3375000, while the sum is 52.

The spelling of 5661515115556 in words is "five trillion, six hundred sixty-one billion, five hundred fifteen million, one hundred fifteen thousand, five hundred fifty-six".