16123350563 has 4 divisors (see below), whose sum is σ = 16498312248. Its totient is φ = 15748388880.

The previous prime is 16123350559. The next prime is 16123350601. The reversal of 16123350563 is 36505332161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36505332161 = 114311 ⋅319351.

It is a cyclic number.

It is not a de Polignac number, because 16123350563 - 2² = 16123350559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16123350863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187480778 + ... + 187480863.

It is an arithmetic number, because the mean of its divisors is an integer number (4124578062).

Almost surely, 2^16123350563 is an apocalyptic number.

16123350563 is a deficient number, since it is larger than the sum of its proper divisors (374961685).

16123350563 is an equidigital number, since it uses as much as digits as its factorization.

16123350563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374961684.

The product of its (nonzero) digits is 48600, while the sum is 35.

The spelling of 16123350563 in words is "sixteen billion, one hundred twenty-three million, three hundred fifty thousand, five hundred sixty-three".