16616220423241 has 4 divisors (see below), whose sum is σ = 16616231169300. Its totient is φ = 16616209677184.

The previous prime is 16616220423211. The next prime is 16616220423331. The reversal of 16616220423241 is 14232402261661.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4540393872400 + 12075826550841 = 2130820^2 + 3475029^2 .

It is a cyclic number.

It is not a de Polignac number, because 16616220423241 - 2⁹ = 16616220422729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16616220423194 and 16616220423203.

It is not an unprimeable number, because it can be changed into a prime (16616220423211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2564176 + ... + 6309313.

It is an arithmetic number, because the mean of its divisors is an integer number (4154057792325).

Almost surely, 2^{16616220423241} is an apocalyptic number.

It is an amenable number.

16616220423241 is a deficient number, since it is larger than the sum of its proper divisors (10746059).

16616220423241 is an equidigital number, since it uses as much as digits as its factorization.

16616220423241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10746058.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 16616220423241 in words is "sixteen trillion, six hundred sixteen billion, two hundred twenty million, four hundred twenty-three thousand, two hundred forty-one".