6557464788163 has 8 divisors (see below), whose sum is σ = 6566581321200. Its totient is φ = 6548350752768.

The previous prime is 6557464788151. The next prime is 6557464788181. The reversal of 6557464788163 is 3618874647556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6557464788163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6557464788092 and 6557464788101.

It is not an unprimeable number, because it can be changed into a prime (6557404788163) 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, 4661220 + ... + 5902702.

It is an arithmetic number, because the mean of its divisors is an integer number (820822665150).

Almost surely, 2^{6557464788163} is an apocalyptic number.

6557464788163 is a deficient number, since it is larger than the sum of its proper divisors (9116533037).

6557464788163 is a wasteful number, since it uses less digits than its factorization.

6557464788163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248821.

The product of its digits is 812851200, while the sum is 70.

The spelling of 6557464788163 in words is "six trillion, five hundred fifty-seven billion, four hundred sixty-four million, seven hundred eighty-eight thousand, one hundred sixty-three".