16623025229 has 2 divisors, whose sum is σ = 16623025230. Its totient is φ = 16623025228.

The previous prime is 16623025217. The next prime is 16623025231. The reversal of 16623025229 is 92252032661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11729323204 + 4893702025 = 108302^2 + 69955^2 .

It is an emirp because it is prime and its reverse (92252032661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16623025229 - 2⁴ = 16623025213 is a prime.

Together with 16623025231, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16623025192 and 16623025201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16623025249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8311512614 + 8311512615.

It is an arithmetic number, because the mean of its divisors is an integer number (8311512615).

Almost surely, 2^16623025229 is an apocalyptic number.

It is an amenable number.

16623025229 is a deficient number, since it is larger than the sum of its proper divisors (1).

16623025229 is an equidigital number, since it uses as much as digits as its factorization.

16623025229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 16623025229 in words is "sixteen billion, six hundred twenty-three million, twenty-five thousand, two hundred twenty-nine".