65771799450983 has 8 divisors (see below), whose sum is σ = 65863140739968. Its totient is φ = 65680492184064.

The previous prime is 65771799450971. The next prime is 65771799450989. The reversal of 65771799450983 is 38905499717756.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65771799450983 - 2⁶ = 65771799450919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65771799450898 and 65771799450907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65771799450989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4635191 + ... + 12370472.

It is an arithmetic number, because the mean of its divisors is an integer number (8232892592496).

Almost surely, 2^{65771799450983} is an apocalyptic number.

65771799450983 is a deficient number, since it is larger than the sum of its proper divisors (91341288985).

65771799450983 is a wasteful number, since it uses less digits than its factorization.

65771799450983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17011033.

The product of its (nonzero) digits is 3600676800, while the sum is 80.

The spelling of 65771799450983 in words is "sixty-five trillion, seven hundred seventy-one billion, seven hundred ninety-nine million, four hundred fifty thousand, nine hundred eighty-three".