220813374168 has 24 divisors (see below), whose sum is σ = 598036221900. Its totient is φ = 73604458032.

The previous prime is 220813374157. The next prime is 220813374179. The reversal of 220813374168 is 861473318022.

220813374168 is a `hidden beast` number, since 2 + 208 + 13 + 374 + 1 + 68 = 666.

It is an interprime number because it is at equal distance from previous prime (220813374157) and next prime (220813374179).

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×220813374168² (a number of 23 digits) contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 1533426138 + ... + 1533426281.

Almost surely, 2^220813374168 is an apocalyptic number.

It is an amenable number.

220813374168 is an abundant number, since it is smaller than the sum of its proper divisors (377222847732).

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

220813374168 is a wasteful number, since it uses less digits than its factorization.

220813374168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066852431 (or 3066852424 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 220813374168 in words is "two hundred twenty billion, eight hundred thirteen million, three hundred seventy-four thousand, one hundred sixty-eight".