6505622064 has 120 divisors (see below), whose sum is σ = 18367128000. Its totient is φ = 2149539840.

The previous prime is 6505622029. The next prime is 6505622083. The reversal of 6505622064 is 4602265056.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14488912 + ... + 14489360.

It is an arithmetic number, because the mean of its divisors is an integer number (153059400).

Almost surely, 2^6505622064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6505622064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9183564000).

6505622064 is an abundant number, since it is smaller than the sum of its proper divisors (11861505936).

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

6505622064 is a wasteful number, since it uses less digits than its factorization.

6505622064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 6505622064 is about 80657.4365077393. The cubic root of 6505622064 is about 1866.7934853182.

The spelling of 6505622064 in words is "six billion, five hundred five million, six hundred twenty-two thousand, sixty-four".