16551106001011 has 4 divisors (see below), whose sum is σ = 16863391019952. Its totient is φ = 16238820982072.

The previous prime is 16551106000987. The next prime is 16551106001047. The reversal of 16551106001011 is 11010060115561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16551106001011 - 2⁴¹ = 14352082745459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16551106001711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156142509391 + ... + 156142509496.

It is an arithmetic number, because the mean of its divisors is an integer number (4215847754988).

Almost surely, 2^{16551106001011} is an apocalyptic number.

16551106001011 is a deficient number, since it is larger than the sum of its proper divisors (312285018941).

16551106001011 is an equidigital number, since it uses as much as digits as its factorization.

16551106001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312285018940.

The product of its (nonzero) digits is 900, while the sum is 28.

Adding to 16551106001011 its reverse (11010060115561), we get a palindrome (27561166116572).

The spelling of 16551106001011 in words is "sixteen trillion, five hundred fifty-one billion, one hundred six million, one thousand, eleven".