65320667 has 16 divisors (see below), whose sum is σ = 70555968. Its totient is φ = 60318720.

The previous prime is 65320649. The next prime is 65320679. The reversal of 65320667 is 76602356.

It is a cyclic number.

It is not a de Polignac number, because 65320667 - 2⁶ = 65320603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65320067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106253 + ... + 106865.

It is an arithmetic number, because the mean of its divisors is an integer number (4409748).

Almost surely, 2^65320667 is an apocalyptic number.

65320667 is a deficient number, since it is larger than the sum of its proper divisors (5235301).

65320667 is a wasteful number, since it uses less digits than its factorization.

65320667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 65320667 is about 8082.1202045008. The cubic root of 65320667 is about 402.7326782441.

The spelling of 65320667 in words is "sixty-five million, three hundred twenty thousand, six hundred sixty-seven".