12168916977 has 16 divisors (see below), whose sum is σ = 18602364800. Its totient is φ = 6931446912.

The previous prime is 12168916961. The next prime is 12168916997. The reversal of 12168916977 is 77961986121.

It is not a de Polignac number, because 12168916977 - 2⁴ = 12168916961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12168916927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 919102 + ... + 932247.

It is an arithmetic number, because the mean of its divisors is an integer number (1162647800).

Almost surely, 2^12168916977 is an apocalyptic number.

It is an amenable number.

12168916977 is a deficient number, since it is larger than the sum of its proper divisors (6433447823).

12168916977 is a wasteful number, since it uses less digits than its factorization.

12168916977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851672.

The product of its digits is 2286144, while the sum is 57.

The spelling of 12168916977 in words is "twelve billion, one hundred sixty-eight million, nine hundred sixteen thousand, nine hundred seventy-seven".