16690550 has 24 divisors (see below), whose sum is σ = 32680200. Its totient is φ = 6324480.

The previous prime is 16690537. The next prime is 16690559. The reversal of 16690550 is 5509661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16690559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7835 + ... + 9734.

It is an arithmetic number, because the mean of its divisors is an integer number (1361675).

Almost surely, 2^16690550 is an apocalyptic number.

16690550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16690550 is a deficient number, since it is larger than the sum of its proper divisors (15989650).

16690550 is a wasteful number, since it uses less digits than its factorization.

16690550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17600 (or 17595 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 16690550 is about 4085.4069564732. The cubic root of 16690550 is about 255.5584327198.

The spelling of 16690550 in words is "sixteen million, six hundred ninety thousand, five hundred fifty".