12006617983 has 4 divisors (see below), whose sum is σ = 12203447848. Its totient is φ = 11809788120.

The previous prime is 12006617977. The next prime is 12006617989. The reversal of 12006617983 is 38971660021.

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

It is an interprime number because it is at equal distance from previous prime (12006617977) and next prime (12006617989).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12006617983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12006617989) 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, 98414841 + ... + 98414962.

It is an arithmetic number, because the mean of its divisors is an integer number (3050861962).

Almost surely, 2^12006617983 is an apocalyptic number.

12006617983 is a deficient number, since it is larger than the sum of its proper divisors (196829865).

12006617983 is an equidigital number, since it uses as much as digits as its factorization.

12006617983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196829864.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 12006617983 in words is "twelve billion, six million, six hundred seventeen thousand, nine hundred eighty-three".