16908308420 has 24 divisors (see below), whose sum is σ = 35745759000. Its totient is φ = 6717930752.

The previous prime is 16908308383. The next prime is 16908308479. The reversal of 16908308420 is 2480380961.

It can be written as a sum of positive squares in 4 ways, for example, as 2102772736 + 14805535684 = 45856^2 + 121678^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2833985 + ... + 2839944.

It is an arithmetic number, because the mean of its divisors is an integer number (1489406625).

Almost surely, 2^16908308420 is an apocalyptic number.

16908308420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16908308420 is an abundant number, since it is smaller than the sum of its proper divisors (18837450580).

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

16908308420 is a wasteful number, since it uses less digits than its factorization.

16908308420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5674087 (or 5674085 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 16908308420 in words is "sixteen billion, nine hundred eight million, three hundred eight thousand, four hundred twenty".