64534331523203 has 2 divisors, whose sum is σ = 64534331523204. Its totient is φ = 64534331523202.

The previous prime is 64534331523197. The next prime is 64534331523209. The reversal of 64534331523203 is 30232513343546.

It is a balanced prime because it is at equal distance from previous prime (64534331523197) and next prime (64534331523209).

It is a cyclic number.

It is not a de Polignac number, because 64534331523203 - 2³⁴ = 64517151654019 is a prime.

It is not a weakly prime, because it can be changed into another prime (64534331523209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32267165761601 + 32267165761602.

It is an arithmetic number, because the mean of its divisors is an integer number (32267165761602).

Almost surely, 2^{64534331523203} is an apocalyptic number.

64534331523203 is a deficient number, since it is larger than the sum of its proper divisors (1).

64534331523203 is an equidigital number, since it uses as much as digits as its factorization.

64534331523203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 44.

Adding to 64534331523203 its reverse (30232513343546), we get a palindrome (94766844866749).

The spelling of 64534331523203 in words is "sixty-four trillion, five hundred thirty-four billion, three hundred thirty-one million, five hundred twenty-three thousand, two hundred three".