660511260305226 has 24 divisors (see below), whose sum is σ = 1561208433449184. Its totient is φ = 200154927365160.

The previous prime is 660511260305219. The next prime is 660511260305257. The reversal of 660511260305226 is 622503062115066.

660511260305226 is a `hidden beast` number, since 6 + 6 + 0 + 5 + 1 + 12 + 603 + 0 + 5 + 2 + 26 = 666.

It is a super-2 number, since 2×660511260305226² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1667957727846 + ... + 1667957728241.

It is an arithmetic number, because the mean of its divisors is an integer number (65050351393716).

Almost surely, 2^{660511260305226} is an apocalyptic number.

660511260305226 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

660511260305226 is an abundant number, since it is smaller than the sum of its proper divisors (900697173143958).

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

660511260305226 is a wasteful number, since it uses less digits than its factorization.

660511260305226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335915456106 (or 3335915456103 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 660511260305226 in words is "six hundred sixty trillion, five hundred eleven billion, two hundred sixty million, three hundred five thousand, two hundred twenty-six".