64346120533 has 2 divisors, whose sum is σ = 64346120534. Its totient is φ = 64346120532.

The previous prime is 64346120519. The next prime is 64346120557. The reversal of 64346120533 is 33502164346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56082765124 + 8263355409 = 236818^2 + 90903^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64346120533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64346120492 and 64346120501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64346120833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32173060266 + 32173060267.

It is an arithmetic number, because the mean of its divisors is an integer number (32173060267).

Almost surely, 2^64346120533 is an apocalyptic number.

It is an amenable number.

64346120533 is a deficient number, since it is larger than the sum of its proper divisors (1).

64346120533 is an equidigital number, since it uses as much as digits as its factorization.

64346120533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 64346120533 its reverse (33502164346), we get a palindrome (97848284879).

The spelling of 64346120533 in words is "sixty-four billion, three hundred forty-six million, one hundred twenty thousand, five hundred thirty-three".