5311031665968 has 480 divisors, whose sum is σ = 17946279936000. Its totient is φ = 1434165419520.

The previous prime is 5311031665939. The next prime is 5311031665991. The reversal of 5311031665968 is 8695661301135.

5311031665968 is a `hidden beast` number, since 5 + 3 + 1 + 10 + 31 + 6 + 6 + 596 + 8 = 666.

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 95 ways as a sum of consecutive naturals, for example, 732855721 + ... + 732862967.

It is an arithmetic number, because the mean of its divisors is an integer number (37388083200).

Almost surely, 2^{5311031665968} 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 5311031665968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8973139968000).

5311031665968 is an abundant number, since it is smaller than the sum of its proper divisors (12635248270032).

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

5311031665968 is a wasteful number, since it uses less digits than its factorization.

5311031665968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7845 (or 7836 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 5311031665968 in words is "five trillion, three hundred eleven billion, thirty-one million, six hundred sixty-five thousand, nine hundred sixty-eight".