16545772450771 has 4 divisors (see below), whose sum is σ = 16552733232472. Its totient is φ = 16538811669072.

The previous prime is 16545772450759. The next prime is 16545772450787. The reversal of 16545772450771 is 17705427754561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16545772450771 - 2¹⁵ = 16545772418003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16545772451771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3480387285 + ... + 3480392038.

It is an arithmetic number, because the mean of its divisors is an integer number (4138183308118).

Almost surely, 2^{16545772450771} is an apocalyptic number.

16545772450771 is a deficient number, since it is larger than the sum of its proper divisors (6960781701).

16545772450771 is an equidigital number, since it uses as much as digits as its factorization.

16545772450771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6960781700.

The product of its (nonzero) digits is 57624000, while the sum is 61.

The spelling of 16545772450771 in words is "sixteen trillion, five hundred forty-five billion, seven hundred seventy-two million, four hundred fifty thousand, seven hundred seventy-one".