16550330 has 16 divisors (see below), whose sum is σ = 31358880. Its totient is φ = 6271632.

The previous prime is 16550323. The next prime is 16550357. The reversal of 16550330 is 3305561.

It is a junction number, because it is equal to n+sod(n) for n = 16550296 and 16550305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43364 + ... + 43743.

It is an arithmetic number, because the mean of its divisors is an integer number (1959930).

Almost surely, 2^16550330 is an apocalyptic number.

16550330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16550330 is a deficient number, since it is larger than the sum of its proper divisors (14808550).

16550330 is a wasteful number, since it uses less digits than its factorization.

16550330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87133.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 16550330 is about 4068.2096799452. The cubic root of 16550330 is about 254.8407566568.

Adding to 16550330 its reverse (3305561), we get a palindrome (19855891).

The spelling of 16550330 in words is "sixteen million, five hundred fifty thousand, three hundred thirty".