20055220546560 has 352 divisors, whose sum is σ = 70871631478272. Its totient is φ = 4814619279360.

The previous prime is 20055220546553. The next prime is 20055220546589. The reversal of 20055220546560 is 6564502255002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4336095 + ... + 7675425.

Almost surely, 2^{20055220546560} is an apocalyptic number.

20055220546560 is a gapful number since it is divisible by the number (20) 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 20055220546560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35435815739136).

20055220546560 is an abundant number, since it is smaller than the sum of its proper divisors (50816410931712).

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

20055220546560 is a wasteful number, since it uses less digits than its factorization.

20055220546560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339399 (or 3339381 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 20055220546560 in words is "twenty trillion, fifty-five billion, two hundred twenty million, five hundred forty-six thousand, five hundred sixty".