65477768 has 16 divisors (see below), whose sum is σ = 125383680. Its totient is φ = 32042128.

The previous prime is 65477767. The next prime is 65477773. The reversal of 65477768 is 86777456.

65477768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65477767) 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, 86696 + ... + 87447.

It is an arithmetic number, because the mean of its divisors is an integer number (7836480).

Almost surely, 2^65477768 is an apocalyptic number.

It is an amenable number.

65477768 is a deficient number, since it is larger than the sum of its proper divisors (59905912).

65477768 is a wasteful number, since it uses less digits than its factorization.

65477768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174196 (or 174192 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 50.

The square root of 65477768 is about 8091.8334140045. The cubic root of 65477768 is about 403.0552869696.

The spelling of 65477768 in words is "sixty-five million, four hundred seventy-seven thousand, seven hundred sixty-eight".