20228603438766 has 32 divisors (see below), whose sum is σ = 40509127987200. Its totient is φ = 6734215369760.

The previous prime is 20228603438711. The next prime is 20228603438767. The reversal of 20228603438766 is 66783430682202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20228603438767) 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, 80261575 + ... + 80513213.

It is an arithmetic number, because the mean of its divisors is an integer number (1265910249600).

Almost surely, 2^{20228603438766} is an apocalyptic number.

20228603438766 is an abundant number, since it is smaller than the sum of its proper divisors (20280524548434).

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

20228603438766 is a wasteful number, since it uses less digits than its factorization.

20228603438766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268784.

The product of its (nonzero) digits is 27869184, while the sum is 57.

The spelling of 20228603438766 in words is "twenty trillion, two hundred twenty-eight billion, six hundred three million, four hundred thirty-eight thousand, seven hundred sixty-six".