16466543773 has 2 divisors, whose sum is σ = 16466543774. Its totient is φ = 16466543772.

The previous prime is 16466543693. The next prime is 16466543813. The reversal of 16466543773 is 37734566461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15489793764 + 976750009 = 124458^2 + 31253^2 .

It is a cyclic number.

It is not a de Polignac number, because 16466543773 - 2²⁹ = 15929672861 is a prime.

It is a super-2 number, since 2×16466543773² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16466543773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16466543473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8233271886 + 8233271887.

It is an arithmetic number, because the mean of its divisors is an integer number (8233271887).

Almost surely, 2^16466543773 is an apocalyptic number.

It is an amenable number.

16466543773 is a deficient number, since it is larger than the sum of its proper divisors (1).

16466543773 is an equidigital number, since it uses as much as digits as its factorization.

16466543773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 52.

The spelling of 16466543773 in words is "sixteen billion, four hundred sixty-six million, five hundred forty-three thousand, seven hundred seventy-three".