650506165065 has 48 divisors (see below), whose sum is σ = 1129053843216. Its totient is φ = 346472448000.

The previous prime is 650506165051. The next prime is 650506165069. The reversal of 650506165065 is 560561605056.

650506165065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 10869313536 + 639636851529 = 104256^2 + 799773^2 .

It is not a de Polignac number, because 650506165065 - 2¹⁷ = 650506033993 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 650506165065.

It is not an unprimeable number, because it can be changed into a prime (650506165069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145167625 + ... + 145172105.

It is an arithmetic number, because the mean of its divisors is an integer number (23521955067).

Almost surely, 2^650506165065 is an apocalyptic number.

It is an amenable number.

650506165065 is a deficient number, since it is larger than the sum of its proper divisors (478547678151).

650506165065 is a wasteful number, since it uses less digits than its factorization.

650506165065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8090 (or 8087 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 650506165065 in words is "six hundred fifty billion, five hundred six million, one hundred sixty-five thousand, sixty-five".