65345805 has 32 divisors (see below), whose sum is σ = 132768000. Its totient is φ = 29871936.

The previous prime is 65345801. The next prime is 65345831. The reversal of 65345805 is 50854356.

65345805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65345805 - 2² = 65345801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65345805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65345801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33630 + ... + 35519.

It is an arithmetic number, because the mean of its divisors is an integer number (4149000).

Almost surely, 2^65345805 is an apocalyptic number.

It is an amenable number.

65345805 is an abundant number, since it is smaller than the sum of its proper divisors (67422195).

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

65345805 is a wasteful number, since it uses less digits than its factorization.

65345805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69170 (or 69164 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 65345805 is about 8083.6752161378. The cubic root of 65345805 is about 402.7843341550.

The spelling of 65345805 in words is "sixty-five million, three hundred forty-five thousand, eight hundred five".