16546573101881 has 2 divisors, whose sum is σ = 16546573101882. Its totient is φ = 16546573101880.

The previous prime is 16546573101869. The next prime is 16546573101907. The reversal of 16546573101881 is 18810137564561.

16546573101881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11488981411600 + 5057591690281 = 3389540^2 + 2248909^2 .

It is a cyclic number.

It is not a de Polignac number, because 16546573101881 - 2³⁰ = 16545499360057 is a prime.

It is a super-2 number, since 2×16546573101881² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16546573901881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8273286550940 + 8273286550941.

It is an arithmetic number, because the mean of its divisors is an integer number (8273286550941).

Almost surely, 2^{16546573101881} is an apocalyptic number.

It is an amenable number.

16546573101881 is a deficient number, since it is larger than the sum of its proper divisors (1).

16546573101881 is an equidigital number, since it uses as much as digits as its factorization.

16546573101881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 56.

The spelling of 16546573101881 in words is "sixteen trillion, five hundred forty-six billion, five hundred seventy-three million, one hundred one thousand, eight hundred eighty-one".