216677776612 has 12 divisors (see below), whose sum is σ = 413657573616. Its totient is φ = 98489898440.

The previous prime is 216677776597. The next prime is 216677776657.

216677776612 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2462247418 + ... + 2462247505.

It is an arithmetic number, because the mean of its divisors is an integer number (34471464468).

Almost surely, 2^216677776612 is an apocalyptic number.

216677776612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

216677776612 is a deficient number, since it is larger than the sum of its proper divisors (196979797004).

216677776612 is a wasteful number, since it uses less digits than its factorization.

216677776612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4924494938 (or 4924494936 counting only the distinct ones).

The product of its digits is 12446784, while the sum is 58.

The spelling of 216677776612 in words is "two hundred sixteen billion, six hundred seventy-seven million, seven hundred seventy-six thousand, six hundred twelve".