16768650321 has 32 divisors (see below), whose sum is σ = 25253959680. Its totient is φ = 10994460048.

The previous prime is 16768650307. The next prime is 16768650323. The reversal of 16768650321 is 12305686761.

16768650321 is a `hidden beast` number, since 1 + 67 + 6 + 86 + 503 + 2 + 1 = 666.

It is not a de Polignac number, because 16768650321 - 2⁹ = 16768649809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16768650323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1163260 + ... + 1177586.

It is an arithmetic number, because the mean of its divisors is an integer number (789186240).

Almost surely, 2^16768650321 is an apocalyptic number.

It is an amenable number.

16768650321 is a deficient number, since it is larger than the sum of its proper divisors (8485309359).

16768650321 is a wasteful number, since it uses less digits than its factorization.

16768650321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15050 (or 15044 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 16768650321 in words is "sixteen billion, seven hundred sixty-eight million, six hundred fifty thousand, three hundred twenty-one".