16550907 has 8 divisors (see below), whose sum is σ = 22104576. Its totient is φ = 11015592.

The previous prime is 16550903. The next prime is 16550917. The reversal of 16550907 is 70905561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16550907 - 2² = 16550903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16550903) 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 7 ways as a sum of consecutive naturals, for example, 2323 + ... + 6204.

It is an arithmetic number, because the mean of its divisors is an integer number (2763072).

Almost surely, 2^16550907 is an apocalyptic number.

16550907 is a deficient number, since it is larger than the sum of its proper divisors (5553669).

16550907 is an equidigital number, since it uses as much as digits as its factorization.

16550907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9177.

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 16550907 is about 4068.2805950426. The cubic root of 16550907 is about 254.8437181568.

The spelling of 16550907 in words is "sixteen million, five hundred fifty thousand, nine hundred seven".