5161536031140 has 144 divisors (see below), whose sum is σ = 15815452476096. Its totient is φ = 1362456288000.

The previous prime is 5161536031123. The next prime is 5161536031177. The reversal of 5161536031140 is 411306351615.

5161536031140 is a `hidden beast` number, since 5 + 1 + 6 + 1 + 5 + 3 + 603 + 1 + 1 + 40 = 666.

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 = 5161536031095 and 5161536031104.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81469275 + ... + 81532605.

It is an arithmetic number, because the mean of its divisors is an integer number (109829531084).

Almost surely, 2^{5161536031140} 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 5161536031140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7907726238048).

5161536031140 is an abundant number, since it is smaller than the sum of its proper divisors (10653916444956).

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

5161536031140 is a wasteful number, since it uses less digits than its factorization.

5161536031140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67930 (or 67925 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 5161536031140 in words is "five trillion, one hundred sixty-one billion, five hundred thirty-six million, thirty-one thousand, one hundred forty".