20550701226 has 256 divisors, whose sum is σ = 52214906880. Its totient is φ = 5352652800.

The previous prime is 20550701219. The next prime is 20550701231. The reversal of 20550701226 is 62210705502.

It is a junction number, because it is equal to n+sod(n) for n = 20550701193 and 20550701202.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 79963690 + ... + 79963946.

It is an arithmetic number, because the mean of its divisors is an integer number (203964480).

Almost surely, 2^20550701226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20550701226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26107453440).

20550701226 is an abundant number, since it is smaller than the sum of its proper divisors (31664205654).

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

20550701226 is a wasteful number, since it uses less digits than its factorization.

20550701226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The spelling of 20550701226 in words is "twenty billion, five hundred fifty million, seven hundred one thousand, two hundred twenty-six".