16721202764 has 18 divisors (see below), whose sum is σ = 34039591740. Its totient is φ = 7166229672.

The previous prime is 16721202727. The next prime is 16721202769. The reversal of 16721202764 is 46720212761.

16721202764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16721202769) 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 5 ways as a sum of consecutive naturals, for example, 42655934 + ... + 42656325.

It is an arithmetic number, because the mean of its divisors is an integer number (1891088430).

Almost surely, 2^16721202764 is an apocalyptic number.

16721202764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16721202764 is an abundant number, since it is smaller than the sum of its proper divisors (17318388976).

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

16721202764 is a wasteful number, since it uses less digits than its factorization.

16721202764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85312277 (or 85312268 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 16721202764 in words is "sixteen billion, seven hundred twenty-one million, two hundred two thousand, seven hundred sixty-four".