16506970560 has 168 divisors, whose sum is σ = 58880233776. Its totient is φ = 4401838080.

The previous prime is 16506970559. The next prime is 16506970561. The reversal of 16506970560 is 6507960561.

16506970560 is a `hidden beast` number, since 1 + 6 + 506 + 97 + 0 + 56 + 0 = 666.

16506970560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16506970559) and next prime (16506970561).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16506970561) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 28381 + ... + 183900.

It is an arithmetic number, because the mean of its divisors is an integer number (350477582).

Almost surely, 2^16506970560 is an apocalyptic number.

16506970560 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 16506970560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29440116888).

16506970560 is an abundant number, since it is smaller than the sum of its proper divisors (42373263216).

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

16506970560 is an equidigital number, since it uses as much as digits as its factorization.

16506970560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212313 (or 212291 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

Subtracting from 16506970560 its reverse (6507960561), we obtain a palindrome (9999009999).

The spelling of 16506970560 in words is "sixteen billion, five hundred six million, nine hundred seventy thousand, five hundred sixty".