64820330968 has 16 divisors (see below), whose sum is σ = 123249926160. Its totient is φ = 31953684000.

The previous prime is 64820330959. The next prime is 64820330977. The reversal of 64820330968 is 86903302846.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64820330959) and next prime (64820330977).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57059583 + ... + 57060718.

It is an arithmetic number, because the mean of its divisors is an integer number (7703120385).

Almost surely, 2^64820330968 is an apocalyptic number.

It is an amenable number.

64820330968 is a deficient number, since it is larger than the sum of its proper divisors (58429595192).

64820330968 is a wasteful number, since it uses less digits than its factorization.

64820330968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114120378 (or 114120374 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 64820330968 in words is "sixty-four billion, eight hundred twenty million, three hundred thirty thousand, nine hundred sixty-eight".