65069645 has 24 divisors (see below), whose sum is σ = 82989816. Its totient is φ = 48964608.

The previous prime is 65069629. The next prime is 65069647. The reversal of 65069645 is 54696056.

65069645 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 4 ways, for example, as 3556996 + 61512649 = 1886^2 + 7843^2 .

It is not a de Polignac number, because 65069645 - 2⁴ = 65069629 is a prime.

It is a super-3 number, since 3×65069645³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65069647) 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 23 ways as a sum of consecutive naturals, for example, 192917 + ... + 193253.

It is an arithmetic number, because the mean of its divisors is an integer number (3457909).

Almost surely, 2^65069645 is an apocalyptic number.

It is an amenable number.

65069645 is a deficient number, since it is larger than the sum of its proper divisors (17920171).

65069645 is a wasteful number, since it uses less digits than its factorization.

65069645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 65069645 is about 8066.5757914991. The cubic root of 65069645 is about 402.2161263684.

The spelling of 65069645 in words is "sixty-five million, sixty-nine thousand, six hundred forty-five".