16752392021 has 2 divisors, whose sum is σ = 16752392022. Its totient is φ = 16752392020.

The previous prime is 16752391969. The next prime is 16752392047. The reversal of 16752392021 is 12029325761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16202489521 + 549902500 = 127289^2 + 23450^2 .

It is an emirp because it is prime and its reverse (12029325761) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16752392021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16752392051) 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 as a sum of consecutive naturals, namely, 8376196010 + 8376196011.

It is an arithmetic number, because the mean of its divisors is an integer number (8376196011).

Almost surely, 2^16752392021 is an apocalyptic number.

It is an amenable number.

16752392021 is a deficient number, since it is larger than the sum of its proper divisors (1).

16752392021 is an equidigital number, since it uses as much as digits as its factorization.

16752392021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 16752392021 in words is "sixteen billion, seven hundred fifty-two million, three hundred ninety-two thousand, twenty-one".