16600880609 has 2 divisors, whose sum is σ = 16600880610. Its totient is φ = 16600880608.

The previous prime is 16600880581. The next prime is 16600880617. The reversal of 16600880609 is 90608800661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16102341025 + 498539584 = 126895^2 + 22328^2 .

It is a cyclic number.

It is not a de Polignac number, because 16600880609 - 2³² = 12305913313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16600880609.

It is not a weakly prime, because it can be changed into another prime (16600880509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8300440304 + 8300440305.

It is an arithmetic number, because the mean of its divisors is an integer number (8300440305).

Almost surely, 2^16600880609 is an apocalyptic number.

It is an amenable number.

16600880609 is a deficient number, since it is larger than the sum of its proper divisors (1).

16600880609 is an equidigital number, since it uses as much as digits as its factorization.

16600880609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 16600880609 in words is "sixteen billion, six hundred million, eight hundred eighty thousand, six hundred nine".