16606456722 has 96 divisors (see below), whose sum is σ = 38336613120. Its totient is φ = 5180474880.

The previous prime is 16606456693. The next prime is 16606456729. The reversal of 16606456722 is 22765460661.

16606456722 is a `hidden beast` number, since 1 + 6 + 6 + 0 + 64 + 567 + 22 = 666.

It is not an unprimeable number, because it can be changed into a prime (16606456729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16655928 + ... + 16656924.

It is an arithmetic number, because the mean of its divisors is an integer number (399339720).

Almost surely, 2^16606456722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16606456722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19168306560).

16606456722 is an abundant number, since it is smaller than the sum of its proper divisors (21730156398).

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

16606456722 is a wasteful number, since it uses less digits than its factorization.

16606456722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 16606456722 in words is "sixteen billion, six hundred six million, four hundred fifty-six thousand, seven hundred twenty-two".