4223549955520 has 112 divisors (see below), whose sum is σ = 11499772377600. Its totient is φ = 1447358321664.

The previous prime is 4223549955511. The next prime is 4223549955523. The reversal of 4223549955520 is 255599453224.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223549955523) 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, 4075381 + ... + 5005579.

Almost surely, 2^{4223549955520} is an apocalyptic number.

4223549955520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4223549955520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5749886188800).

4223549955520 is an abundant number, since it is smaller than the sum of its proper divisors (7276222422080).

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

4223549955520 is a wasteful number, since it uses less digits than its factorization.

4223549955520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932250 (or 932240 counting only the distinct ones).

The product of its (nonzero) digits is 19440000, while the sum is 55.

The spelling of 4223549955520 in words is "four trillion, two hundred twenty-three billion, five hundred forty-nine million, nine hundred fifty-five thousand, five hundred twenty".