16906648906 has 32 divisors (see below), whose sum is σ = 29609648640. Its totient is φ = 7090626816.

The previous prime is 16906648873. The next prime is 16906648907. The reversal of 16906648906 is 60984660961.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16906648907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57340 + ... + 192616.

It is an arithmetic number, because the mean of its divisors is an integer number (925301520).

Almost surely, 2^16906648906 is an apocalyptic number.

16906648906 is a deficient number, since it is larger than the sum of its proper divisors (12702999734).

16906648906 is a wasteful number, since it uses less digits than its factorization.

16906648906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135478.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 16906648906 in words is "sixteen billion, nine hundred six million, six hundred forty-eight thousand, nine hundred six".