16696655 has 4 divisors (see below), whose sum is σ = 20035992. Its totient is φ = 13357320.

The previous prime is 16696639. The next prime is 16696661. The reversal of 16696655 is 55669661.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16696655 - 2⁴ = 16696639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1669661 + ... + 1669670.

It is an arithmetic number, because the mean of its divisors is an integer number (5008998).

Almost surely, 2^16696655 is an apocalyptic number.

16696655 is a deficient number, since it is larger than the sum of its proper divisors (3339337).

16696655 is an equidigital number, since it uses as much as digits as its factorization.

16696655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339336.

The product of its digits is 291600, while the sum is 44.

The square root of 16696655 is about 4086.1540597486. The cubic root of 16696655 is about 255.5895879553.

The spelling of 16696655 in words is "sixteen million, six hundred ninety-six thousand, six hundred fifty-five".