16349116428 has 36 divisors (see below), whose sum is σ = 43502036760. Its totient is φ = 5162878656.

The previous prime is 16349116411. The next prime is 16349116451. The reversal of 16349116428 is 82461194361.

16349116428 is a `hidden beast` number, since 1 + 634 + 9 + 1 + 1 + 6 + 4 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11950425 + ... + 11951792.

It is an arithmetic number, because the mean of its divisors is an integer number (1208389910).

Almost surely, 2^16349116428 is an apocalyptic number.

16349116428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16349116428 is an abundant number, since it is smaller than the sum of its proper divisors (27152920332).

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

16349116428 is a wasteful number, since it uses less digits than its factorization.

16349116428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23902246 (or 23902241 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The spelling of 16349116428 in words is "sixteen billion, three hundred forty-nine million, one hundred sixteen thousand, four hundred twenty-eight".