16116587520 has 704 divisors, whose sum is σ = 61802237952. Its totient is φ = 3538944000.

The previous prime is 16116587479. The next prime is 16116587549. The reversal of 16116587520 is 2578561161.

It is a tau number, because it is divible by the number of its divisors (704).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89041830 + ... + 89042010.

Almost surely, 2^16116587520 is an apocalyptic number.

16116587520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16116587520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30901118976).

16116587520 is an abundant number, since it is smaller than the sum of its proper divisors (45685650432).

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

16116587520 is a wasteful number, since it uses less digits than its factorization.

16116587520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 42.

The spelling of 16116587520 in words is "sixteen billion, one hundred sixteen million, five hundred eighty-seven thousand, five hundred twenty".