16909656732 has 108 divisors (see below), whose sum is σ = 44346941184. Its totient is φ = 5429554560.

The previous prime is 16909656703. The next prime is 16909656739. The reversal of 16909656732 is 23765690961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16909656739) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10167333 + ... + 10168995.

Almost surely, 2^16909656732 is an apocalyptic number.

16909656732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16909656732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22173470592).

16909656732 is an abundant number, since it is smaller than the sum of its proper divisors (27437284452).

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

16909656732 is a wasteful number, since it uses less digits than its factorization.

16909656732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 16909656732 in words is "sixteen billion, nine hundred nine million, six hundred fifty-six thousand, seven hundred thirty-two".