65489477205 has 16 divisors (see below), whose sum is σ = 104791425984. Its totient is φ = 34924967040.

The previous prime is 65489477203. The next prime is 65489477299. The reversal of 65489477205 is 50277498456.

It is a happy number.

It is not a de Polignac number, because 65489477205 - 2¹ = 65489477203 is a prime.

It is a super-2 number, since 2×65489477205² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65489477203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32265 + ... + 363345.

It is an arithmetic number, because the mean of its divisors is an integer number (6549464124).

Almost surely, 2^65489477205 is an apocalyptic number.

It is an amenable number.

65489477205 is a deficient number, since it is larger than the sum of its proper divisors (39301948779).

65489477205 is a wasteful number, since it uses less digits than its factorization.

65489477205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344276.

The product of its (nonzero) digits is 16934400, while the sum is 57.

The spelling of 65489477205 in words is "sixty-five billion, four hundred eighty-nine million, four hundred seventy-seven thousand, two hundred five".