16342077021 has 4 divisors (see below), whose sum is σ = 21789436032. Its totient is φ = 10894718012.

The previous prime is 16342077019. The next prime is 16342077077. The reversal of 16342077021 is 12077024361.

16342077021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16342077021 - 2¹ = 16342077019 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16342077421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2723679501 + ... + 2723679506.

It is an arithmetic number, because the mean of its divisors is an integer number (5447359008).

Almost surely, 2^16342077021 is an apocalyptic number.

It is an amenable number.

16342077021 is a deficient number, since it is larger than the sum of its proper divisors (5447359011).

16342077021 is an equidigital number, since it uses as much as digits as its factorization.

16342077021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447359010.

The product of its (nonzero) digits is 14112, while the sum is 33.

The spelling of 16342077021 in words is "sixteen billion, three hundred forty-two million, seventy-seven thousand, twenty-one".