16722650880 has 720 divisors, whose sum is σ = 67934956320. Its totient is φ = 3893723136.

The previous prime is 16722650873. The next prime is 16722650887. The reversal of 16722650880 is 8805622761.

16722650880 is a `hidden beast` number, since 1 + 67 + 2 + 2 + 6 + 508 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (16722650873) and next prime (16722650887).

It is a tau number, because it is divible by the number of its divisors (720).

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 (16722650887) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 25608634 + ... + 25609286.

It is an arithmetic number, because the mean of its divisors is an integer number (94354106).

Almost surely, 2^16722650880 is an apocalyptic number.

16722650880 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 16722650880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33967478160).

16722650880 is an abundant number, since it is smaller than the sum of its proper divisors (51212305440).

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

16722650880 is a wasteful number, since it uses less digits than its factorization.

16722650880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 16722650880 in words is "sixteen billion, seven hundred twenty-two million, six hundred fifty thousand, eight hundred eighty".