16100881 has 2 divisors, whose sum is σ = 16100882. Its totient is φ = 16100880.

The previous prime is 16100879. The next prime is 16100939. The reversal of 16100881 is 18800161.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14318656 + 1782225 = 3784^2 + 1335^2 .

It is a cyclic number.

It is not a de Polignac number, because 16100881 - 2¹ = 16100879 is a prime.

It is a super-2 number, since 2×16100881² = 518476737952322, which contains 22 as substring.

Together with 16100879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16100831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8050440 + 8050441.

It is an arithmetic number, because the mean of its divisors is an integer number (8050441).

Almost surely, 2^16100881 is an apocalyptic number.

It is an amenable number.

16100881 is a deficient number, since it is larger than the sum of its proper divisors (1).

16100881 is an equidigital number, since it uses as much as digits as its factorization.

16100881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 16100881 is about 4012.5903105102. The cubic root of 16100881 is about 252.5126928887.

The spelling of 16100881 in words is "sixteen million, one hundred thousand, eight hundred eighty-one".