16132258421 has 2 divisors, whose sum is σ = 16132258422. Its totient is φ = 16132258420.

The previous prime is 16132258403. The next prime is 16132258447. The reversal of 16132258421 is 12485223161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15200177521 + 932080900 = 123289^2 + 30530^2 .

It is a cyclic number.

It is not a de Polignac number, because 16132258421 - 2¹⁴ = 16132242037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16132258321) 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, 8066129210 + 8066129211.

It is an arithmetic number, because the mean of its divisors is an integer number (8066129211).

Almost surely, 2^16132258421 is an apocalyptic number.

It is an amenable number.

16132258421 is a deficient number, since it is larger than the sum of its proper divisors (1).

16132258421 is an equidigital number, since it uses as much as digits as its factorization.

16132258421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 35.

The spelling of 16132258421 in words is "sixteen billion, one hundred thirty-two million, two hundred fifty-eight thousand, four hundred twenty-one".