16906388308 has 6 divisors (see below), whose sum is σ = 29586179546. Its totient is φ = 8453194152.

The previous prime is 16906388299. The next prime is 16906388351. The reversal of 16906388308 is 80388360961.

It can be written as a sum of positive squares in only one way, i.e., 13808130064 + 3098258244 = 117508^2 + 55662^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2113298535 + ... + 2113298542.

Almost surely, 2^16906388308 is an apocalyptic number.

It is an amenable number.

16906388308 is a deficient number, since it is larger than the sum of its proper divisors (12679791238).

16906388308 is a wasteful number, since it uses less digits than its factorization.

16906388308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226597081 (or 4226597079 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 16906388308 in words is "sixteen billion, nine hundred six million, three hundred eighty-eight thousand, three hundred eight".