65077663 has 4 divisors (see below), whose sum is σ = 74374480. Its totient is φ = 55780848.

The previous prime is 65077651. The next prime is 65077697. The reversal of 65077663 is 36677056.

65077663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65077663 - 2¹⁷ = 64946591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65077613) 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 3 ways as a sum of consecutive naturals, for example, 4648398 + ... + 4648411.

It is an arithmetic number, because the mean of its divisors is an integer number (18593620).

Almost surely, 2^65077663 is an apocalyptic number.

65077663 is a deficient number, since it is larger than the sum of its proper divisors (9296817).

65077663 is an equidigital number, since it uses as much as digits as its factorization.

65077663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9296816.

The product of its (nonzero) digits is 158760, while the sum is 40.

The square root of 65077663 is about 8067.0727652600. The cubic root of 65077663 is about 402.2326462907.

The spelling of 65077663 in words is "sixty-five million, seventy-seven thousand, six hundred sixty-three".