16768640245 has 16 divisors (see below), whose sum is σ = 23996862720. Its totient is φ = 10998561024.

The previous prime is 16768640243. The next prime is 16768640263. The reversal of 16768640245 is 54204686761.

It is a cyclic number.

It is not a de Polignac number, because 16768640245 - 2¹ = 16768640243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16768640243) 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, 10414500 + ... + 10416109.

It is an arithmetic number, because the mean of its divisors is an integer number (1499803920).

Almost surely, 2^16768640245 is an apocalyptic number.

It is an amenable number.

16768640245 is a deficient number, since it is larger than the sum of its proper divisors (7228222475).

16768640245 is a wasteful number, since it uses less digits than its factorization.

16768640245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20830644.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 16768640245 in words is "sixteen billion, seven hundred sixty-eight million, six hundred forty thousand, two hundred forty-five".