16520715414 has 192 divisors, whose sum is σ = 43012809216. Its totient is φ = 4484823552.

The previous prime is 16520715317. The next prime is 16520715469. The reversal of 16520715414 is 41451702561.

16520715414 is a `hidden beast` number, since 1 + 6 + 520 + 71 + 54 + 14 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70904242 + ... + 70904474.

It is an arithmetic number, because the mean of its divisors is an integer number (224025048).

Almost surely, 2^16520715414 is an apocalyptic number.

16520715414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16520715414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21506404608).

16520715414 is an abundant number, since it is smaller than the sum of its proper divisors (26492093802).

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

16520715414 is a wasteful number, since it uses less digits than its factorization.

16520715414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 16520715414 in words is "sixteen billion, five hundred twenty million, seven hundred fifteen thousand, four hundred fourteen".