5221160665660 has 48 divisors (see below), whose sum is σ = 11610068649984. Its totient is φ = 1965500945408.

The previous prime is 5221160665657. The next prime is 5221160665661. The reversal of 5221160665660 is 665660611225.

It is a self number, because there is not a number n which added to its sum of digits gives 5221160665660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221160665661) 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 15 ways as a sum of consecutive naturals, for example, 5634117 + ... + 6495043.

It is an arithmetic number, because the mean of its divisors is an integer number (241876430208).

Almost surely, 2^{5221160665660} is an apocalyptic number.

It is an amenable number.

5221160665660 is an abundant number, since it is smaller than the sum of its proper divisors (6388907984324).

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

5221160665660 is a wasteful number, since it uses less digits than its factorization.

5221160665660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878790 (or 878788 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 5221160665660 in words is "five trillion, two hundred twenty-one billion, one hundred sixty million, six hundred sixty-five thousand, six hundred sixty".