16918065075 has 24 divisors (see below), whose sum is σ = 28498966128. Its totient is φ = 8852721280.

The previous prime is 16918065071. The next prime is 16918065103. The reversal of 16918065075 is 57056081961.

It is not a de Polignac number, because 16918065075 - 2² = 16918065071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16918065071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2124084 + ... + 2132033.

It is an arithmetic number, because the mean of its divisors is an integer number (1187456922).

Almost surely, 2^16918065075 is an apocalyptic number.

16918065075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16918065075 is a deficient number, since it is larger than the sum of its proper divisors (11580901053).

16918065075 is a wasteful number, since it uses less digits than its factorization.

16918065075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256183 (or 4256178 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 48.

The spelling of 16918065075 in words is "sixteen billion, nine hundred eighteen million, sixty-five thousand, seventy-five".