16545732213937 has 2 divisors, whose sum is σ = 16545732213938. Its totient is φ = 16545732213936.

The previous prime is 16545732213911. The next prime is 16545732214043. The reversal of 16545732213937 is 73931223754561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13461384888576 + 3084347325361 = 3668976^2 + 1756231^2 .

It is a cyclic number.

It is not a de Polignac number, because 16545732213937 - 2⁷ = 16545732213809 is a prime.

It is a super-2 number, since 2×16545732213937² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16545732213037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272866106968 + 8272866106969.

It is an arithmetic number, because the mean of its divisors is an integer number (8272866106969).

Almost surely, 2^{16545732213937} is an apocalyptic number.

It is an amenable number.

16545732213937 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545732213937 is an equidigital number, since it uses as much as digits as its factorization.

16545732213937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28576800, while the sum is 58.

The spelling of 16545732213937 in words is "sixteen trillion, five hundred forty-five billion, seven hundred thirty-two million, two hundred thirteen thousand, nine hundred thirty-seven".