16944531623 has 2 divisors, whose sum is σ = 16944531624. Its totient is φ = 16944531622.

The previous prime is 16944531613. The next prime is 16944531649. The reversal of 16944531623 is 32613544961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16944531623 - 2⁶ = 16944531559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16944531613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8472265811 + 8472265812.

It is an arithmetic number, because the mean of its divisors is an integer number (8472265812).

Almost surely, 2^16944531623 is an apocalyptic number.

16944531623 is a deficient number, since it is larger than the sum of its proper divisors (1).

16944531623 is an equidigital number, since it uses as much as digits as its factorization.

16944531623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 44.

The spelling of 16944531623 in words is "sixteen billion, nine hundred forty-four million, five hundred thirty-one thousand, six hundred twenty-three".