220667478669206 has 32 divisors (see below), whose sum is σ = 350647280726400. Its totient is φ = 103791556350976.

The previous prime is 220667478669191. The next prime is 220667478669251. The reversal of 220667478669206 is 602966874766022.

It is a super-2 number, since 2×220667478669206² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220667478669206.

It is a congruent number.

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, 909348866 + ... + 909591498.

It is an arithmetic number, because the mean of its divisors is an integer number (10957727522700).

Almost surely, 2^{220667478669206} is an apocalyptic number.

220667478669206 is a deficient number, since it is larger than the sum of its proper divisors (129979802057194).

220667478669206 is a wasteful number, since it uses less digits than its factorization.

220667478669206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255928.

The product of its (nonzero) digits is 877879296, while the sum is 71.

The spelling of 220667478669206 in words is "two hundred twenty trillion, six hundred sixty-seven billion, four hundred seventy-eight million, six hundred sixty-nine thousand, two hundred six".