65582013109 has 12 divisors (see below), whose sum is σ = 70808802148. Its totient is φ = 60712358400.

The previous prime is 65582013097. The next prime is 65582013127. The reversal of 65582013109 is 90131028556.

It can be written as a sum of positive squares in 6 ways, for example, as 81848209 + 65500164900 = 9047^2 + 255930^2 .

It is not a de Polignac number, because 65582013109 - 2¹⁵ = 65581980341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65582013149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1842432 + ... + 1877689.

Almost surely, 2^65582013109 is an apocalyptic number.

It is an amenable number.

65582013109 is a deficient number, since it is larger than the sum of its proper divisors (5226789039).

65582013109 is a wasteful number, since it uses less digits than its factorization.

65582013109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720216 (or 3720199 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 65582013109 in words is "sixty-five billion, five hundred eighty-two million, thirteen thousand, one hundred nine".