65320646 has 8 divisors (see below), whose sum is σ = 98031384. Its totient is φ = 32643520.

The previous prime is 65320603. The next prime is 65320649. The reversal of 65320646 is 64602356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65320649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2795 + ... + 11766.

It is an arithmetic number, because the mean of its divisors is an integer number (12253923).

Almost surely, 2^65320646 is an apocalyptic number.

65320646 is a deficient number, since it is larger than the sum of its proper divisors (32710738).

65320646 is a wasteful number, since it uses less digits than its factorization.

65320646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16806.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 65320646 is about 8082.1189053366. The cubic root of 65320646 is about 402.7326350858.

The spelling of 65320646 in words is "sixty-five million, three hundred twenty thousand, six hundred forty-six".