5001581665863 has 24 divisors (see below), whose sum is σ = 7273288152000. Its totient is φ = 3311875145664.

The previous prime is 5001581665837. The next prime is 5001581665877. The reversal of 5001581665863 is 3685661851005.

5001581665863 is a `hidden beast` number, since 5 + 0 + 0 + 1 + 58 + 1 + 6 + 6 + 586 + 3 = 666.

It is not a de Polignac number, because 5001581665863 - 2⁵ = 5001581665831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5001581660863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41603506 + ... + 41723552.

It is an arithmetic number, because the mean of its divisors is an integer number (303053673000).

Almost surely, 2^{5001581665863} is an apocalyptic number.

5001581665863 is a deficient number, since it is larger than the sum of its proper divisors (2271706486137).

5001581665863 is a wasteful number, since it uses less digits than its factorization.

5001581665863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151271 (or 151268 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 5001581665863 in words is "five trillion, one billion, five hundred eighty-one million, six hundred sixty-five thousand, eight hundred sixty-three".