16606727129 has 2 divisors, whose sum is σ = 16606727130. Its totient is φ = 16606727128.

The previous prime is 16606727107. The next prime is 16606727201. The reversal of 16606727129 is 92172760661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16473209104 + 133518025 = 128348^2 + 11555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16606727129 is a prime.

It is not a weakly prime, because it can be changed into another prime (16606727029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8303363564 + 8303363565.

It is an arithmetic number, because the mean of its divisors is an integer number (8303363565).

Almost surely, 2^16606727129 is an apocalyptic number.

It is an amenable number.

16606727129 is a deficient number, since it is larger than the sum of its proper divisors (1).

16606727129 is an equidigital number, since it uses as much as digits as its factorization.

16606727129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 16606727129 in words is "sixteen billion, six hundred six million, seven hundred twenty-seven thousand, one hundred twenty-nine".