16111102466881 has 4 divisors (see below), whose sum is σ = 16111161921712. Its totient is φ = 16111043012052.

The previous prime is 16111102466869. The next prime is 16111102466941. The reversal of 16111102466881 is 18866420111161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16111102466881 - 2²⁷ = 16110968249153 is a prime.

It is a super-2 number, since 2×16111102466881² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16111102466801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29319075 + ... + 29863528.

It is an arithmetic number, because the mean of its divisors is an integer number (4027790480428).

Almost surely, 2^{16111102466881} is an apocalyptic number.

It is an amenable number.

16111102466881 is a deficient number, since it is larger than the sum of its proper divisors (59454831).

16111102466881 is an equidigital number, since it uses as much as digits as its factorization.

16111102466881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59454830.

The product of its (nonzero) digits is 110592, while the sum is 46.

The spelling of 16111102466881 in words is "sixteen trillion, one hundred eleven billion, one hundred two million, four hundred sixty-six thousand, eight hundred eighty-one".