16730423641 has 2 divisors, whose sum is σ = 16730423642. Its totient is φ = 16730423640.

The previous prime is 16730423621. The next prime is 16730423653. The reversal of 16730423641 is 14632403761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10588410000 + 6142013641 = 102900^2 + 78371^2 .

It is a cyclic number.

It is not a de Polignac number, because 16730423641 - 2⁷ = 16730423513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16730423641.

It is not a weakly prime, because it can be changed into another prime (16730423621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8365211820 + 8365211821.

It is an arithmetic number, because the mean of its divisors is an integer number (8365211821).

Almost surely, 2^16730423641 is an apocalyptic number.

It is an amenable number.

16730423641 is a deficient number, since it is larger than the sum of its proper divisors (1).

16730423641 is an equidigital number, since it uses as much as digits as its factorization.

16730423641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 16730423641 in words is "sixteen billion, seven hundred thirty million, four hundred twenty-three thousand, six hundred forty-one".