16720744003 has 2 divisors, whose sum is σ = 16720744004. Its totient is φ = 16720744002.

The previous prime is 16720743979. The next prime is 16720744013. The reversal of 16720744003 is 30044702761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16720744003 - 2²⁹ = 16183873091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16720744003.

It is not a weakly prime, because it can be changed into another prime (16720744013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8360372001 + 8360372002.

It is an arithmetic number, because the mean of its divisors is an integer number (8360372002).

Almost surely, 2^16720744003 is an apocalyptic number.

16720744003 is a deficient number, since it is larger than the sum of its proper divisors (1).

16720744003 is an equidigital number, since it uses as much as digits as its factorization.

16720744003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 34.

The spelling of 16720744003 in words is "sixteen billion, seven hundred twenty million, seven hundred forty-four thousand, three".