16680233552 has 10 divisors (see below), whose sum is σ = 32317952538. Its totient is φ = 8340116768.

The previous prime is 16680233539. The next prime is 16680233593. The reversal of 16680233552 is 25533208661.

It can be written as a sum of positive squares in only one way, i.e., 16221588496 + 458645056 = 127364^2 + 21416^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521257283 + ... + 521257314.

Almost surely, 2^16680233552 is an apocalyptic number.

It is an amenable number.

16680233552 is a deficient number, since it is larger than the sum of its proper divisors (15637718986).

16680233552 is a wasteful number, since it uses less digits than its factorization.

16680233552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042514605 (or 1042514599 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 16680233552 in words is "sixteen billion, six hundred eighty million, two hundred thirty-three thousand, five hundred fifty-two".