16145400223 has 4 divisors (see below), whose sum is σ = 16145979088. Its totient is φ = 16144821360.

The previous prime is 16145400211. The next prime is 16145400239. The reversal of 16145400223 is 32200454161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16145400223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16145400191 and 16145400200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16145400283) 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, 245358 + ... + 304123.

It is an arithmetic number, because the mean of its divisors is an integer number (4036494772).

Almost surely, 2^16145400223 is an apocalyptic number.

16145400223 is a deficient number, since it is larger than the sum of its proper divisors (578865).

16145400223 is an equidigital number, since it uses as much as digits as its factorization.

16145400223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578864.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 16145400223 its reverse (32200454161), we get a palindrome (48345854384).

The spelling of 16145400223 in words is "sixteen billion, one hundred forty-five million, four hundred thousand, two hundred twenty-three".