221196380174808 has 64 divisors (see below), whose sum is σ = 557505901056000. Its totient is φ = 73130468084352.

The previous prime is 221196380174801. The next prime is 221196380174821. The reversal of 221196380174808 is 808471083691122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221196380174801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113583 + ... + 21033441.

It is an arithmetic number, because the mean of its divisors is an integer number (8711029704000).

Almost surely, 2^{221196380174808} is an apocalyptic number.

It is an amenable number.

221196380174808 is an abundant number, since it is smaller than the sum of its proper divisors (336309520881192).

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

221196380174808 is a wasteful number, since it uses less digits than its factorization.

221196380174808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20923464 (or 20923460 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 60.

The spelling of 221196380174808 in words is "two hundred twenty-one trillion, one hundred ninety-six billion, three hundred eighty million, one hundred seventy-four thousand, eight hundred eight".