16641601423 has 2 divisors, whose sum is σ = 16641601424. Its totient is φ = 16641601422.

The previous prime is 16641601411. The next prime is 16641601433. The reversal of 16641601423 is 32410614661.

It is a strong prime.

It is an emirp because it is prime and its reverse (32410614661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16641601423 - 2¹³ = 16641593231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16641601433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8320800711 + 8320800712.

It is an arithmetic number, because the mean of its divisors is an integer number (8320800712).

Almost surely, 2^16641601423 is an apocalyptic number.

16641601423 is a deficient number, since it is larger than the sum of its proper divisors (1).

16641601423 is an equidigital number, since it uses as much as digits as its factorization.

16641601423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 16641601423 in words is "sixteen billion, six hundred forty-one million, six hundred one thousand, four hundred twenty-three".