12065739697 has 6 divisors (see below), whose sum is σ = 13262342114. Its totient is φ = 10968854160.

The previous prime is 12065739691. The next prime is 12065739743. The reversal of 12065739697 is 79693756021.

It can be written as a sum of positive squares in only one way, i.e., 7751745936 + 4313993761 = 88044^2 + 65681^2 .

It is not a de Polignac number, because 12065739697 - 2²⁷ = 11931521969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12065739691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49858308 + ... + 49858549.

Almost surely, 2^12065739697 is an apocalyptic number.

It is an amenable number.

12065739697 is a deficient number, since it is larger than the sum of its proper divisors (1196602417).

12065739697 is an equidigital number, since it uses as much as digits as its factorization.

12065739697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99716879 (or 99716868 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 55.

The spelling of 12065739697 in words is "twelve billion, sixty-five million, seven hundred thirty-nine thousand, six hundred ninety-seven".