64703566012 has 12 divisors (see below), whose sum is σ = 113291902360. Its totient is φ = 32334451056.

The previous prime is 64703566009. The next prime is 64703566019. The reversal of 64703566012 is 21066530746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64703566019) 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, 4324587 + ... + 4339522.

Almost surely, 2^64703566012 is an apocalyptic number.

It is an amenable number.

64703566012 is a deficient number, since it is larger than the sum of its proper divisors (48588336348).

64703566012 is a wasteful number, since it uses less digits than its factorization.

64703566012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8665980 (or 8665978 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 64703566012 in words is "sixty-four billion, seven hundred three million, five hundred sixty-six thousand, twelve".