12165656002067 has 4 divisors (see below), whose sum is σ = 12881282825736. Its totient is φ = 11450029178400.

The previous prime is 12165656002037. The next prime is 12165656002111. The reversal of 12165656002067 is 76020065656121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12165656002067 - 2¹⁰ = 12165656001043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12165656002037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357813411809 + ... + 357813411842.

It is an arithmetic number, because the mean of its divisors is an integer number (3220320706434).

Almost surely, 2^{12165656002067} is an apocalyptic number.

12165656002067 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12165656002067 is a deficient number, since it is larger than the sum of its proper divisors (715626823669).

12165656002067 is an equidigital number, since it uses as much as digits as its factorization.

12165656002067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715626823668.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 12165656002067 in words is "twelve trillion, one hundred sixty-five billion, six hundred fifty-six million, two thousand, sixty-seven".