65050505000 has 80 divisors (see below), whose sum is σ = 164137599780. Its totient is φ = 24018624000.

The previous prime is 65050504993. The next prime is 65050505033. The reversal of 65050505000 is 50505056.

It can be written as a sum of positive squares in 10 ways, for example, as 5093105956 + 59957399044 = 71366^2 + 244862^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 435389 + ... + 565388.

Almost surely, 2^65050505000 is an apocalyptic number.

It is an amenable number.

65050505000 is an abundant number, since it is smaller than the sum of its proper divisors (99087094780).

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

65050505000 is a wasteful number, since it uses less digits than its factorization.

65050505000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000816 (or 1000797 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 26.

The spelling of 65050505000 in words is "sixty-five billion, fifty million, five hundred five thousand".