16545064553737 has 2 divisors, whose sum is σ = 16545064553738. Its totient is φ = 16545064553736.

The previous prime is 16545064553723. The next prime is 16545064553753. The reversal of 16545064553737 is 73735546054561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12911546173696 + 3633518380041 = 3593264^2 + 1906179^2 .

It is a cyclic number.

It is not a de Polignac number, because 16545064553737 - 2¹⁹ = 16545064029449 is a prime.

It is a super-3 number, since 3×16545064553737³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (16545064551737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272532276868 + 8272532276869.

It is an arithmetic number, because the mean of its divisors is an integer number (8272532276869).

Almost surely, 2^{16545064553737} is an apocalyptic number.

It is an amenable number.

16545064553737 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545064553737 is an equidigital number, since it uses as much as digits as its factorization.

16545064553737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760000, while the sum is 61.

The spelling of 16545064553737 in words is "sixteen trillion, five hundred forty-five billion, sixty-four million, five hundred fifty-three thousand, seven hundred thirty-seven".