220766055552 has 128 divisors (see below), whose sum is σ = 744647491200. Its totient is φ = 63076008960.

The previous prime is 220766055541. The next prime is 220766055557. The reversal of 220766055552 is 255550667022.

220766055552 is a `hidden beast` number, since 2 + 20 + 76 + 6 + 0 + 5 + 5 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 220766055498 and 220766055507.

It is not an unprimeable number, because it can be changed into a prime (220766055557) 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, 4538599 + ... + 4586982.

It is an arithmetic number, because the mean of its divisors is an integer number (5817558525).

Almost surely, 2^220766055552 is an apocalyptic number.

It is an amenable number.

220766055552 is an abundant number, since it is smaller than the sum of its proper divisors (523881435648).

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

220766055552 is an equidigital number, since it uses as much as digits as its factorization.

220766055552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9125611 (or 9125593 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 220766055552 in words is "two hundred twenty billion, seven hundred sixty-six million, fifty-five thousand, five hundred fifty-two".