6465208766776 has 16 divisors (see below), whose sum is σ = 12129555859200. Its totient is φ = 3230660537664.

The previous prime is 6465208766749. The next prime is 6465208766777. The reversal of 6465208766776 is 6776678025646.

It is a super-2 number, since 2×6465208766776² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6465208766777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242966581 + ... + 242993188.

It is an arithmetic number, because the mean of its divisors is an integer number (758097241200).

Almost surely, 2^{6465208766776} is an apocalyptic number.

It is an amenable number.

6465208766776 is a deficient number, since it is larger than the sum of its proper divisors (5664347092424).

6465208766776 is a wasteful number, since it uses less digits than its factorization.

6465208766776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485961438 (or 485961434 counting only the distinct ones).

The product of its (nonzero) digits is 853493760, while the sum is 70.

The spelling of 6465208766776 in words is "six trillion, four hundred sixty-five billion, two hundred eight million, seven hundred sixty-six thousand, seven hundred seventy-six".