16550601 has 8 divisors (see below), whose sum is σ = 22086624. Its totient is φ = 11024160.

The previous prime is 16550587. The next prime is 16550603. The reversal of 16550601 is 10605561.

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

It is not a de Polignac number, because 16550601 - 2⁹ = 16550089 is a prime.

It is a super-2 number, since 2×16550601² = 547844786922402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16550603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4365 + ... + 7221.

It is an arithmetic number, because the mean of its divisors is an integer number (2760828).

Almost surely, 2^16550601 is an apocalyptic number.

It is an amenable number.

16550601 is a deficient number, since it is larger than the sum of its proper divisors (5536023).

16550601 is a wasteful number, since it uses less digits than its factorization.

16550601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4791.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 16550601 is about 4068.2429868433. The cubic root of 16550601 is about 254.8421475952.

The spelling of 16550601 in words is "sixteen million, five hundred fifty thousand, six hundred one".