65380568144 has 10 divisors (see below), whose sum is σ = 126674850810. Its totient is φ = 32690284064.

The previous prime is 65380568117. The next prime is 65380568153. The reversal of 65380568144 is 44186508356.

65380568144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 58521415744 + 6859152400 = 241912^2 + 82820^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65380568092 and 65380568101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2043142739 + ... + 2043142770.

It is an arithmetic number, because the mean of its divisors is an integer number (12667485081).

Almost surely, 2^65380568144 is an apocalyptic number.

It is an amenable number.

65380568144 is a deficient number, since it is larger than the sum of its proper divisors (61294282666).

65380568144 is a wasteful number, since it uses less digits than its factorization.

65380568144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086285517 (or 4086285511 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 50.

The spelling of 65380568144 in words is "sixty-five billion, three hundred eighty million, five hundred sixty-eight thousand, one hundred forty-four".