65351660551 has 2 divisors, whose sum is σ = 65351660552. Its totient is φ = 65351660550.

The previous prime is 65351660513. The next prime is 65351660567. The reversal of 65351660551 is 15506615356.

It is a happy number.

65351660551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65351660551 - 2³⁵ = 30991922183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65351660498 and 65351660507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65351360551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32675830275 + 32675830276.

It is an arithmetic number, because the mean of its divisors is an integer number (32675830276).

Almost surely, 2^65351660551 is an apocalyptic number.

65351660551 is a deficient number, since it is larger than the sum of its proper divisors (1).

65351660551 is an equidigital number, since it uses as much as digits as its factorization.

65351660551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405000, while the sum is 43.

The spelling of 65351660551 in words is "sixty-five billion, three hundred fifty-one million, six hundred sixty thousand, five hundred fifty-one".