5161330944 has 432 divisors, whose sum is σ = 18978785280. Its totient is φ = 1309962240.

The previous prime is 5161330931. The next prime is 5161331003. The reversal of 5161330944 is 4490331615.

5161330944 is a `hidden beast` number, since 5 + 1 + 613 + 30 + 9 + 4 + 4 = 666.

It is a super-2 number, since 2×5161330944² = 53278674226983862272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5161330899 and 5161330908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8337867 + ... + 8338485.

Almost surely, 2^5161330944 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 5161330944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9489392640).

5161330944 is an abundant number, since it is smaller than the sum of its proper divisors (13817454336).

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

5161330944 is a wasteful number, since it uses less digits than its factorization.

5161330944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 5161330944 is about 71842.4035232675. The cubic root of 5161330944 is about 1728.1730793713.

The spelling of 5161330944 in words is "five billion, one hundred sixty-one million, three hundred thirty thousand, nine hundred forty-four".