65516767 has 2 divisors, whose sum is σ = 65516768. Its totient is φ = 65516766.

The previous prime is 65516747. The next prime is 65516783. The reversal of 65516767 is 76761556.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65516767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65516707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32758383 + 32758384.

It is an arithmetic number, because the mean of its divisors is an integer number (32758384).

Almost surely, 2^65516767 is an apocalyptic number.

65516767 is a deficient number, since it is larger than the sum of its proper divisors (1).

65516767 is an equidigital number, since it uses as much as digits as its factorization.

65516767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264600, while the sum is 43.

The square root of 65516767 is about 8094.2428305556. The cubic root of 65516767 is about 403.1352919032.

The spelling of 65516767 in words is "sixty-five million, five hundred sixteen thousand, seven hundred sixty-seven".