5901663663556 has 24 divisors (see below), whose sum is σ = 10371390462720. Its totient is φ = 2938409880000.

The previous prime is 5901663663527. The next prime is 5901663663557. The reversal of 5901663663556 is 6553663661095.

It is a junction number, because it is equal to n+sod(n) for n = 5901663663494 and 5901663663503.

It is not an unprimeable number, because it can be changed into a prime (5901663663557) 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, 66302881 + ... + 66391831.

It is an arithmetic number, because the mean of its divisors is an integer number (432141269280).

Almost surely, 2^{5901663663556} is an apocalyptic number.

It is an amenable number.

5901663663556 is a deficient number, since it is larger than the sum of its proper divisors (4469726799164).

5901663663556 is a wasteful number, since it uses less digits than its factorization.

5901663663556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158595 (or 158593 counting only the distinct ones).

The product of its (nonzero) digits is 78732000, while the sum is 61.

The spelling of 5901663663556 in words is "five trillion, nine hundred one billion, six hundred sixty-three million, six hundred sixty-three thousand, five hundred fifty-six".