16613810385 has 32 divisors (see below), whose sum is σ = 26699563008. Its totient is φ = 8821632960.

The previous prime is 16613810383. The next prime is 16613810417. The reversal of 16613810385 is 58301831661.

It is not a de Polignac number, because 16613810385 - 2¹ = 16613810383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16613810383) 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, 3622804 + ... + 3627386.

It is an arithmetic number, because the mean of its divisors is an integer number (834361344).

Almost surely, 2^16613810385 is an apocalyptic number.

16613810385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16613810385 is a deficient number, since it is larger than the sum of its proper divisors (10085752623).

16613810385 is a wasteful number, since it uses less digits than its factorization.

16613810385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 16613810385 in words is "sixteen billion, six hundred thirteen million, eight hundred ten thousand, three hundred eighty-five".