16646498855 has 32 divisors (see below), whose sum is σ = 24191861760. Its totient is φ = 10734635520.

The previous prime is 16646498851. The next prime is 16646498873. The reversal of 16646498855 is 55889464661.

16646498855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16646498855 - 2² = 16646498851 is a prime.

It is a super-2 number, since 2×16646498855² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16646498851) 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 31 ways as a sum of consecutive naturals, for example, 774200 + ... + 795410.

It is an arithmetic number, because the mean of its divisors is an integer number (755995680).

Almost surely, 2^16646498855 is an apocalyptic number.

16646498855 is a deficient number, since it is larger than the sum of its proper divisors (7545362905).

16646498855 is a wasteful number, since it uses less digits than its factorization.

16646498855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22559.

The product of its digits is 49766400, while the sum is 62.

The spelling of 16646498855 in words is "sixteen billion, six hundred forty-six million, four hundred ninety-eight thousand, eight hundred fifty-five".