65765944 has 8 divisors (see below), whose sum is σ = 123311160. Its totient is φ = 32882968.

The previous prime is 65765923. The next prime is 65765971. The reversal of 65765944 is 44956756.

65765944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×65765944² = 8650318780422272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65765894 and 65765903.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4110364 + ... + 4110379.

It is an arithmetic number, because the mean of its divisors is an integer number (15413895).

Almost surely, 2^65765944 is an apocalyptic number.

It is an amenable number.

65765944 is a deficient number, since it is larger than the sum of its proper divisors (57545216).

65765944 is a wasteful number, since it uses less digits than its factorization.

65765944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8220749 (or 8220745 counting only the distinct ones).

The product of its digits is 907200, while the sum is 46.

The square root of 65765944 is about 8109.6204596763. The cubic root of 65765944 is about 403.6457208481.

The spelling of 65765944 in words is "sixty-five million, seven hundred sixty-five thousand, nine hundred forty-four".