64243365303 has 16 divisors (see below), whose sum is σ = 93759130976. Its totient is φ = 38886272640.

The previous prime is 64243365299. The next prime is 64243365317. The reversal of 64243365303 is 30356334246.

It is not a de Polignac number, because 64243365303 - 2² = 64243365299 is a prime.

It is a super-3 number, since 3×64243365303³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64243365343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13499800 + ... + 13504557.

It is an arithmetic number, because the mean of its divisors is an integer number (5859945686).

Almost surely, 2^64243365303 is an apocalyptic number.

64243365303 is a deficient number, since it is larger than the sum of its proper divisors (29515765673).

64243365303 is a wasteful number, since it uses less digits than its factorization.

64243365303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27004434.

The product of its (nonzero) digits is 466560, while the sum is 39.

Adding to 64243365303 its reverse (30356334246), we get a palindrome (94599699549).

The spelling of 64243365303 in words is "sixty-four billion, two hundred forty-three million, three hundred sixty-five thousand, three hundred three".