16606382520 has 512 divisors, whose sum is σ = 65028096000. Its totient is φ = 3297853440.

The previous prime is 16606382437. The next prime is 16606382521. The reversal of 16606382520 is 2528360661.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16606382521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12983241 + ... + 12984519.

It is an arithmetic number, because the mean of its divisors is an integer number (127008000).

Almost surely, 2^16606382520 is an apocalyptic number.

16606382520 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 16606382520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32514048000).

16606382520 is an abundant number, since it is smaller than the sum of its proper divisors (48421713480).

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

16606382520 is a wasteful number, since it uses less digits than its factorization.

16606382520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383 (or 1379 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 16606382520 in words is "sixteen billion, six hundred six million, three hundred eighty-two thousand, five hundred twenty".