64117203323 has 4 divisors (see below), whose sum is σ = 64118687688. Its totient is φ = 64115718960.

The previous prime is 64117203313. The next prime is 64117203329. The reversal of 64117203323 is 32330271146.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64117203323 - 2⁶ = 64117203259 is a prime.

It is a super-2 number, since 2×64117203323² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64117203323.

It is not an unprimeable number, because it can be changed into a prime (64117203329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675386 + ... + 764447.

It is an arithmetic number, because the mean of its divisors is an integer number (16029671922).

Almost surely, 2^64117203323 is an apocalyptic number.

64117203323 is a deficient number, since it is larger than the sum of its proper divisors (1484365).

64117203323 is a wasteful number, since it uses less digits than its factorization.

64117203323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484364.

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 64117203323 its reverse (32330271146), we get a palindrome (96447474469).

The spelling of 64117203323 in words is "sixty-four billion, one hundred seventeen million, two hundred three thousand, three hundred twenty-three".