6502820065 has 16 divisors (see below), whose sum is σ = 9043764480. Its totient is φ = 4396271040.

The previous prime is 6502819993. The next prime is 6502820069. The reversal of 6502820065 is 5600282056.

It is not a de Polignac number, because 6502820065 - 2²³ = 6494431457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6502820065.

It is not an unprimeable number, because it can be changed into a prime (6502820069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1305930 + ... + 1310899.

It is an arithmetic number, because the mean of its divisors is an integer number (565235280).

Almost surely, 2^6502820065 is an apocalyptic number.

It is an amenable number.

6502820065 is a deficient number, since it is larger than the sum of its proper divisors (2540944415).

6502820065 is a wasteful number, since it uses less digits than its factorization.

6502820065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616912.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 6502820065 is about 80640.0648871267. The cubic root of 6502820065 is about 1866.5254348752.

The spelling of 6502820065 in words is "six billion, five hundred two million, eight hundred twenty thousand, sixty-five".