6465066516 has 42 divisors (see below), whose sum is σ = 16963047402. Its totient is φ = 2155021200.

The previous prime is 6465066473. The next prime is 6465066539. The reversal of 6465066516 is 6156605646.

It can be written as a sum of positive squares in only one way, i.e., 4382969616 + 2082096900 = 66204^2 + 45630^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1105635 + ... + 1111466.

It is an arithmetic number, because the mean of its divisors is an integer number (403882081).

Almost surely, 2^6465066516 is an apocalyptic number.

It is an amenable number.

6465066516 is an abundant number, since it is smaller than the sum of its proper divisors (10497980886).

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

6465066516 is a wasteful number, since it uses less digits than its factorization.

6465066516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217123 (or 2217106 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The square root of 6465066516 is about 80405.6373396791. The cubic root of 6465066516 is about 1862.9062474700.

The spelling of 6465066516 in words is "six billion, four hundred sixty-five million, sixty-six thousand, five hundred sixteen".