6577313168 has 10 divisors (see below), whose sum is σ = 12743544294. Its totient is φ = 3288656576.

The previous prime is 6577313159. The next prime is 6577313173. The reversal of 6577313168 is 8613137756.

It can be written as a sum of positive squares in only one way, i.e., 5327832064 + 1249481104 = 72992^2 + 35348^2 .

It is a super-2 number, since 2×6577313168² = 86522097019892392448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205541021 + ... + 205541052.

Almost surely, 2^6577313168 is an apocalyptic number.

It is an amenable number.

6577313168 is a deficient number, since it is larger than the sum of its proper divisors (6166231126).

6577313168 is a wasteful number, since it uses less digits than its factorization.

6577313168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411082081 (or 411082075 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 6577313168 is about 81100.6360517598. The cubic root of 6577313168 is about 1873.6257229758.

The spelling of 6577313168 in words is "six billion, five hundred seventy-seven million, three hundred thirteen thousand, one hundred sixty-eight".