16765676218 has 4 divisors (see below), whose sum is σ = 25148514330. Its totient is φ = 8382838108.

The previous prime is 16765676203. The next prime is 16765676227. The reversal of 16765676218 is 81267656761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81267656761 = 73237 ⋅1109653.

It can be written as a sum of positive squares in only one way, i.e., 11592182889 + 5173493329 = 107667^2 + 71927^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4191419053 + ... + 4191419056.

Almost surely, 2^16765676218 is an apocalyptic number.

16765676218 is a deficient number, since it is larger than the sum of its proper divisors (8382838112).

16765676218 is an equidigital number, since it uses as much as digits as its factorization.

16765676218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8382838111.

The product of its digits is 5080320, while the sum is 55.

The spelling of 16765676218 in words is "sixteen billion, seven hundred sixty-five million, six hundred seventy-six thousand, two hundred eighteen".