16551642226 has 8 divisors (see below), whose sum is σ = 28374243840. Its totient is φ = 7093560948.

The previous prime is 16551642223. The next prime is 16551642277. The reversal of 16551642226 is 62224615561.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (16551642223) 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, 591130066 + ... + 591130093.

It is an arithmetic number, because the mean of its divisors is an integer number (3546780480).

Almost surely, 2^16551642226 is an apocalyptic number.

16551642226 is a deficient number, since it is larger than the sum of its proper divisors (11822601614).

16551642226 is a wasteful number, since it uses less digits than its factorization.

16551642226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182260168.

The product of its digits is 172800, while the sum is 40.

The spelling of 16551642226 in words is "sixteen billion, five hundred fifty-one million, six hundred forty-two thousand, two hundred twenty-six".