16945016918 has 16 divisors (see below), whose sum is σ = 26669182176. Its totient is φ = 8059360320.

The previous prime is 16945016911. The next prime is 16945016927. The reversal of 16945016918 is 81961054961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16945016911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009271 + ... + 1025922.

It is an arithmetic number, because the mean of its divisors is an integer number (1666823886).

Almost surely, 2^16945016918 is an apocalyptic number.

16945016918 is a deficient number, since it is larger than the sum of its proper divisors (9724165258).

16945016918 is a wasteful number, since it uses less digits than its factorization.

16945016918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035399.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 16945016918 in words is "sixteen billion, nine hundred forty-five million, sixteen thousand, nine hundred eighteen".