5901663663558 has 48 divisors (see below), whose sum is σ = 13776131796336. Its totient is φ = 1815160259520.

The previous prime is 5901663663557. The next prime is 5901663663619. The reversal of 5901663663558 is 8553663661095.

It is a happy number.

5901663663558 is a `hidden beast` number, since 5 + 9 + 0 + 16 + 6 + 3 + 6 + 63 + 558 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 5901663663495 and 5901663663504.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 4534353 + ... + 5688908.

It is an arithmetic number, because the mean of its divisors is an integer number (287002745757).

Almost surely, 2^{5901663663558} is an apocalyptic number.

5901663663558 is an abundant number, since it is smaller than the sum of its proper divisors (7874468132778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5901663663558 is a wasteful number, since it uses less digits than its factorization.

5901663663558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10225749 (or 10225746 counting only the distinct ones).

The product of its (nonzero) digits is 104976000, while the sum is 63.

The spelling of 5901663663558 in words is "five trillion, nine hundred one billion, six hundred sixty-three million, six hundred sixty-three thousand, five hundred fifty-eight".