16764421352 has 128 divisors (see below), whose sum is σ = 38320128000. Its totient is φ = 6866080704.

The previous prime is 16764421351. The next prime is 16764421363. The reversal of 16764421352 is 25312446761.

It is not an unprimeable number, because it can be changed into a prime (16764421351) 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 31 ways as a sum of consecutive naturals, for example, 5544113 + ... + 5547135.

It is an arithmetic number, because the mean of its divisors is an integer number (299376000).

Almost surely, 2^16764421352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16764421352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19160064000).

16764421352 is an abundant number, since it is smaller than the sum of its proper divisors (21555706648).

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

16764421352 is a wasteful number, since it uses less digits than its factorization.

16764421352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3140 (or 3122 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The spelling of 16764421352 in words is "sixteen billion, seven hundred sixty-four million, four hundred twenty-one thousand, three hundred fifty-two".