65116507 has 4 divisors (see below), whose sum is σ = 65216880. Its totient is φ = 65016136.

The previous prime is 65116483. The next prime is 65116517. The reversal of 65116507 is 70561156.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65116507 - 2¹⁹ = 64592219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65116517) 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, 49207 + ... + 50512.

It is an arithmetic number, because the mean of its divisors is an integer number (16304220).

Almost surely, 2^65116507 is an apocalyptic number.

65116507 is a deficient number, since it is larger than the sum of its proper divisors (100373).

65116507 is an equidigital number, since it uses as much as digits as its factorization.

65116507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100372.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 65116507 is about 8069.4799708531. The cubic root of 65116507 is about 402.3126594964.

The spelling of 65116507 in words is "sixty-five million, one hundred sixteen thousand, five hundred seven".