65420365 has 16 divisors (see below), whose sum is σ = 80280576. Its totient is φ = 51163200.

The previous prime is 65420359. The next prime is 65420393. The reversal of 65420365 is 56302456.

It is not a de Polignac number, because 65420365 - 2⁷ = 65420237 is a prime.

It is a super-6 number, since 6×65420365⁶ (a number of 48 digits) contains 666666 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57694 + ... + 58816.

It is an arithmetic number, because the mean of its divisors is an integer number (5017536).

Almost surely, 2^65420365 is an apocalyptic number.

It is an amenable number.

65420365 is a deficient number, since it is larger than the sum of its proper divisors (14860211).

65420365 is a wasteful number, since it uses less digits than its factorization.

65420365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 65420365 is about 8088.2856650838. The cubic root of 65420365 is about 402.9374691323.

The spelling of 65420365 in words is "sixty-five million, four hundred twenty thousand, three hundred sixty-five".