65461666616457 has 16 divisors (see below), whose sum is σ = 90104555208192. Its totient is φ = 42230156348160.

The previous prime is 65461666616453. The next prime is 65461666616459. The reversal of 65461666616457 is 75461666616456.

65461666616457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65461666616457 - 2² = 65461666616453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65461666616391 and 65461666616400.

It is not an unprimeable number, because it can be changed into a prime (65461666616453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25231338 + ... + 27704579.

It is an arithmetic number, because the mean of its divisors is an integer number (5631534700512).

Almost surely, 2^{65461666616457} is an apocalyptic number.

It is an amenable number.

65461666616457 is a deficient number, since it is larger than the sum of its proper divisors (24642888591735).

65461666616457 is a wasteful number, since it uses less digits than its factorization.

65461666616457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52949248.

The product of its digits is 783820800, while the sum is 69.

Subtracting 65461666616457 from its reverse (75461666616456), we obtain a palindrome (9999999999999).

The spelling of 65461666616457 in words is "sixty-five trillion, four hundred sixty-one billion, six hundred sixty-six million, six hundred sixteen thousand, four hundred fifty-seven".