12065699669 has 2 divisors, whose sum is σ = 12065699670. Its totient is φ = 12065699668.

The previous prime is 12065699647. The next prime is 12065699687. The reversal of 12065699669 is 96699656021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8176680625 + 3889019044 = 90425^2 + 62362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12065699669 is a prime.

It is a super-2 number, since 2×12065699669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12065699699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6032849834 + 6032849835.

It is an arithmetic number, because the mean of its divisors is an integer number (6032849835).

Almost surely, 2^12065699669 is an apocalyptic number.

It is an amenable number.

12065699669 is a deficient number, since it is larger than the sum of its proper divisors (1).

12065699669 is an equidigital number, since it uses as much as digits as its factorization.

12065699669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9447840, while the sum is 59.

The spelling of 12065699669 in words is "twelve billion, sixty-five million, six hundred ninety-nine thousand, six hundred sixty-nine".