16516561116 has 24 divisors (see below), whose sum is σ = 42042155904. Its totient is φ = 5005018480.

The previous prime is 16516561111. The next prime is 16516561121. The reversal of 16516561116 is 61116561561.

It is an interprime number because it is at equal distance from previous prime (16516561111) and next prime (16516561121).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16516561111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62562600 + ... + 62562863.

It is an arithmetic number, because the mean of its divisors is an integer number (1751756496).

Almost surely, 2^16516561116 is an apocalyptic number.

It is an amenable number.

16516561116 is an abundant number, since it is smaller than the sum of its proper divisors (25525594788).

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

16516561116 is a wasteful number, since it uses less digits than its factorization.

16516561116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125125481 (or 125125479 counting only the distinct ones).

The product of its digits is 32400, while the sum is 39.

The spelling of 16516561116 in words is "sixteen billion, five hundred sixteen million, five hundred sixty-one thousand, one hundred sixteen".