16545720150913 has 2 divisors, whose sum is σ = 16545720150914. Its totient is φ = 16545720150912.

The previous prime is 16545720150893. The next prime is 16545720150917. The reversal of 16545720150913 is 31905102754561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9979862264464 + 6565857886449 = 3159092^2 + 2562393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16545720150913 is a prime.

It is not a weakly prime, because it can be changed into another prime (16545720150917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272860075456 + 8272860075457.

It is an arithmetic number, because the mean of its divisors is an integer number (8272860075457).

Almost surely, 2^{16545720150913} is an apocalyptic number.

It is an amenable number.

16545720150913 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545720150913 is an equidigital number, since it uses as much as digits as its factorization.

16545720150913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 16545720150913 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty million, one hundred fifty thousand, nine hundred thirteen".