16466543827 has 2 divisors, whose sum is σ = 16466543828. Its totient is φ = 16466543826.

The previous prime is 16466543813. The next prime is 16466543839. The reversal of 16466543827 is 72834566461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16466543827 - 2¹⁵ = 16466511059 is a prime.

It is a super-2 number, since 2×16466543827² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16466543897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8233271913 + 8233271914.

It is an arithmetic number, because the mean of its divisors is an integer number (8233271914).

Almost surely, 2^16466543827 is an apocalyptic number.

16466543827 is a deficient number, since it is larger than the sum of its proper divisors (1).

16466543827 is an equidigital number, since it uses as much as digits as its factorization.

16466543827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 52.

The spelling of 16466543827 in words is "sixteen billion, four hundred sixty-six million, five hundred forty-three thousand, eight hundred twenty-seven".