16522796640 has 768 divisors, whose sum is σ = 64963067904. Its totient is φ = 3450470400.

The previous prime is 16522796639. The next prime is 16522796669. The reversal of 16522796640 is 4669722561.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 16522796640.

It is a congruent number.

It is an unprimeable number.

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, 226339644 + ... + 226339716.

It is an arithmetic number, because the mean of its divisors is an integer number (84587328).

Almost surely, 2^16522796640 is an apocalyptic number.

16522796640 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 16522796640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32481533952).

16522796640 is an abundant number, since it is smaller than the sum of its proper divisors (48440271264).

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

16522796640 is a wasteful number, since it uses less digits than its factorization.

16522796640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 16522796640 in words is "sixteen billion, five hundred twenty-two million, seven hundred ninety-six thousand, six hundred forty".