16214015549 has 2 divisors, whose sum is σ = 16214015550. Its totient is φ = 16214015548.

The previous prime is 16214015539. The next prime is 16214015663. The reversal of 16214015549 is 94551041261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8407056100 + 7806959449 = 91690^2 + 88357^2 .

It is a cyclic number.

It is not a de Polignac number, because 16214015549 - 2¹² = 16214011453 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16214015539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8107007774 + 8107007775.

It is an arithmetic number, because the mean of its divisors is an integer number (8107007775).

Almost surely, 2^16214015549 is an apocalyptic number.

It is an amenable number.

16214015549 is a deficient number, since it is larger than the sum of its proper divisors (1).

16214015549 is an equidigital number, since it uses as much as digits as its factorization.

16214015549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 16214015549 in words is "sixteen billion, two hundred fourteen million, fifteen thousand, five hundred forty-nine".