19922415663228 has 96 divisors (see below), whose sum is σ = 51212820105216. Its totient is φ = 5989430479872.

The previous prime is 19922415663173. The next prime is 19922415663287. The reversal of 19922415663228 is 82236651422991.

It is a super-2 number, since 2×19922415663228² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2056825 + ... + 6638927.

It is an arithmetic number, because the mean of its divisors is an integer number (533466876096).

Almost surely, 2^{19922415663228} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19922415663228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25606410052608).

19922415663228 is an abundant number, since it is smaller than the sum of its proper divisors (31290404441988).

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

19922415663228 is a wasteful number, since it uses less digits than its factorization.

19922415663228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582763 (or 4582761 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 60.

The spelling of 19922415663228 in words is "nineteen trillion, nine hundred twenty-two billion, four hundred fifteen million, six hundred sixty-three thousand, two hundred twenty-eight".