5165951856 has 80 divisors (see below), whose sum is σ = 14384079360. Its totient is φ = 1588181760.

The previous prime is 5165951849. The next prime is 5165951881. The reversal of 5165951856 is 6581595615.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5165951799 and 5165951808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940125 + ... + 945603.

It is an arithmetic number, because the mean of its divisors is an integer number (179800992).

Almost surely, 2^5165951856 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 5165951856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7192039680).

5165951856 is an abundant number, since it is smaller than the sum of its proper divisors (9218127504).

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

5165951856 is a wasteful number, since it uses less digits than its factorization.

5165951856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7014 (or 7008 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 51.

The square root of 5165951856 is about 71874.5563881962. The cubic root of 5165951856 is about 1728.6886669072.

The spelling of 5165951856 in words is "five billion, one hundred sixty-five million, nine hundred fifty-one thousand, eight hundred fifty-six".