6465227760 has 160 divisors (see below), whose sum is σ = 22387138560. Its totient is φ = 1714924800.

The previous prime is 6465227753. The next prime is 6465227761. The reversal of 6465227760 is 677225646.

6465227760 is a `hidden beast` number, since 64 + 6 + 522 + 7 + 7 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6465227761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 404725 + ... + 420395.

It is an arithmetic number, because the mean of its divisors is an integer number (139919616).

Almost surely, 2^6465227760 is an apocalyptic number.

6465227760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6465227760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11193569280).

6465227760 is an abundant number, since it is smaller than the sum of its proper divisors (15921910800).

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

6465227760 is a wasteful number, since it uses less digits than its factorization.

6465227760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15884 (or 15872 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 6465227760 is about 80406.6400243164. The cubic root of 6465227760 is about 1862.9217348053.

The spelling of 6465227760 in words is "six billion, four hundred sixty-five million, two hundred twenty-seven thousand, seven hundred sixty".