659816226 has 32 divisors (see below), whose sum is σ = 1530011520. Its totient is φ = 210375792.

The previous prime is 659816177. The next prime is 659816231. The reversal of 659816226 is 622618956.

It is a super-4 number, since 4×659816226⁴ (a number of 36 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264385 + ... + 266868.

It is an arithmetic number, because the mean of its divisors is an integer number (47812860).

Almost surely, 2^659816226 is an apocalyptic number.

659816226 is an abundant number, since it is smaller than the sum of its proper divisors (870195294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

659816226 is a wasteful number, since it uses less digits than its factorization.

659816226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531287 (or 531281 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 659816226 is about 25686.8882116928. Note that the first 3 decimals coincide. The cubic root of 659816226 is about 870.5779512902.

The spelling of 659816226 in words is "six hundred fifty-nine million, eight hundred sixteen thousand, two hundred twenty-six".