16696688 has 10 divisors (see below), whose sum is σ = 32349864. Its totient is φ = 8348336.

The previous prime is 16696681. The next prime is 16696699. The reversal of 16696688 is 88669661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16696681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521756 + ... + 521787.

Almost surely, 2^16696688 is an apocalyptic number.

It is an amenable number.

16696688 is a deficient number, since it is larger than the sum of its proper divisors (15653176).

16696688 is a wasteful number, since it uses less digits than its factorization.

16696688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043551 (or 1043545 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 16696688 is about 4086.1580977735. The cubic root of 16696688 is about 255.5897563413.

The spelling of 16696688 in words is "sixteen million, six hundred ninety-six thousand, six hundred eighty-eight".