20378225226 has 16 divisors (see below), whose sum is σ = 41424589728. Its totient is φ = 6681385200.

The previous prime is 20378225183. The next prime is 20378225237. The reversal of 20378225226 is 62252287302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27838740 + ... + 27839471.

It is an arithmetic number, because the mean of its divisors is an integer number (2589036858).

Almost surely, 2^20378225226 is an apocalyptic number.

20378225226 is an abundant number, since it is smaller than the sum of its proper divisors (21046364502).

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

20378225226 is a wasteful number, since it uses less digits than its factorization.

20378225226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55678277.

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 20378225226 in words is "twenty billion, three hundred seventy-eight million, two hundred twenty-five thousand, two hundred twenty-six".