999310064660 has 96 divisors (see below), whose sum is σ = 2228471118720. Its totient is φ = 375116177408.

The previous prime is 999310064629. The next prime is 999310064671. The reversal of 999310064660 is 66460013999.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185294924 + ... + 185300316.

It is an arithmetic number, because the mean of its divisors is an integer number (23213240820).

Almost surely, 2^999310064660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999310064660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1114235559360).

999310064660 is an abundant number, since it is smaller than the sum of its proper divisors (1229161054060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999310064660 is a wasteful number, since it uses less digits than its factorization.

With its successor (999310064661) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (6903).

With its successor (999310064661) it forms an eRAP, since the sums of their prime factors are consecutive (6905 and 6906).

999310064660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905 (or 6903 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 999310064660 in words is "nine hundred ninety-nine billion, three hundred ten million, sixty-four thousand, six hundred sixty".