16639594730 has 32 divisors (see below), whose sum is σ = 34596123840. Its totient is φ = 5694833920.

The previous prime is 16639594721. The next prime is 16639594739. The reversal of 16639594730 is 3749593661.

16639594730 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16639594721) and next prime (16639594739).

It is a super-2 number, since 2×16639594730² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16639594739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4447220 + ... + 4450959.

It is an arithmetic number, because the mean of its divisors is an integer number (1081128870).

Almost surely, 2^16639594730 is an apocalyptic number.

16639594730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16639594730 is an abundant number, since it is smaller than the sum of its proper divisors (17956529110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16639594730 is a wasteful number, since it uses less digits than its factorization.

16639594730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8898214.

The product of its (nonzero) digits is 3674160, while the sum is 53.

The spelling of 16639594730 in words is "sixteen billion, six hundred thirty-nine million, five hundred ninety-four thousand, seven hundred thirty".