3116561500 has 96 divisors (see below), whose sum is σ = 7407219456. Its totient is φ = 1138636800.

The previous prime is 3116561489. The next prime is 3116561519. The reversal of 3116561500 is 51656113.

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 31 ways as a sum of consecutive naturals, for example, 628029 + ... + 632971.

It is an arithmetic number, because the mean of its divisors is an integer number (77158536).

Almost surely, 2^3116561500 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 3116561500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3703609728).

3116561500 is an abundant number, since it is smaller than the sum of its proper divisors (4290657956).

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

3116561500 is a wasteful number, since it uses less digits than its factorization.

3116561500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072 (or 5060 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 3116561500 is about 55826.1721775728. The cubic root of 3116561500 is about 1460.6917188885.

It can be divided in two parts, 31165 and 61500, that added together give a triangular number (92665 = T₄₃₀).

The spelling of 3116561500 in words is "three billion, one hundred sixteen million, five hundred sixty-one thousand, five hundred".