65922983618 has 6 divisors (see below), whose sum is σ = 98885020089. Its totient is φ = 32961310256.

The previous prime is 65922983603. The next prime is 65922983647. The reversal of 65922983618 is 81638922956.

65922983618 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 2 ways, for example, as 65896430209 + 26553409 = 256703^2 + 5153^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=181553.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 272330 + ... + 453882.

Almost surely, 2^65922983618 is an apocalyptic number.

65922983618 is a deficient number, since it is larger than the sum of its proper divisors (32962036471).

65922983618 is an frugal number, since it uses more digits than its factorization.

65922983618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363108 (or 181555 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 59.

The spelling of 65922983618 in words is "sixty-five billion, nine hundred twenty-two million, nine hundred eighty-three thousand, six hundred eighteen".