21416985358 has 16 divisors (see below), whose sum is σ = 32334595200. Its totient is φ = 10638946296.

The previous prime is 21416985349. The next prime is 21416985389. The reversal of 21416985358 is 85358961412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 232441 + ... + 311227.

It is an arithmetic number, because the mean of its divisors is an integer number (2020912200).

Almost surely, 2^21416985358 is an apocalyptic number.

21416985358 is a deficient number, since it is larger than the sum of its proper divisors (10917609842).

21416985358 is a wasteful number, since it uses less digits than its factorization.

21416985358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79671.

The product of its digits is 2073600, while the sum is 52.

The spelling of 21416985358 in words is "twenty-one billion, four hundred sixteen million, nine hundred eighty-five thousand, three hundred fifty-eight".