16904081930 has 8 divisors (see below), whose sum is σ = 30427347492. Its totient is φ = 6761632768.

The previous prime is 16904081881. The next prime is 16904081939. The reversal of 16904081930 is 3918040961.

It can be written as a sum of positive squares in 2 ways, for example, as 15410491321 + 1493590609 = 124139^2 + 38647^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (16904081939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845204087 + ... + 845204106.

Almost surely, 2^16904081930 is an apocalyptic number.

16904081930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16904081930 is a deficient number, since it is larger than the sum of its proper divisors (13523265562).

16904081930 is a wasteful number, since it uses less digits than its factorization.

16904081930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690408200.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 16904081930 in words is "sixteen billion, nine hundred four million, eighty-one thousand, nine hundred thirty".