16551101 has 8 divisors (see below), whose sum is σ = 19015104. Its totient is φ = 14112000.

The previous prime is 16551091. The next prime is 16551131. The reversal of 16551101 is 10115561.

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

It is not a de Polignac number, because 16551101 - 2¹⁸ = 16288957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16551131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4775 + ... + 7476.

It is an arithmetic number, because the mean of its divisors is an integer number (2376888).

Almost surely, 2^16551101 is an apocalyptic number.

It is an amenable number.

16551101 is a deficient number, since it is larger than the sum of its proper divisors (2464003).

16551101 is a wasteful number, since it uses less digits than its factorization.

16551101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12451.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 16551101 is about 4068.3044379692. The cubic root of 16551101 is about 254.8447138624.

Adding to 16551101 its reverse (10115561), we get a palindrome (26666662).

The spelling of 16551101 in words is "sixteen million, five hundred fifty-one thousand, one hundred one".