220355587895641 has 27 divisors (see below), whose sum is σ = 242645782171989. Its totient is φ = 199962691757400.

The previous prime is 220355587895633. The next prime is 220355587895701. The reversal of 220355587895641 is 146598785553022.

The square root of 220355587895641 is 14844379.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 220355587895641 - 2³ = 220355587895633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220355527895641) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 140264536386 + ... + 140264537956.

It is a 1-persistent number, because it is pandigital, but 2⋅220355587895641 = 440711175791282 is not.

Almost surely, 2^{220355587895641} is an apocalyptic number.

220355587895641 is the 14844379-th square number.

220355587895641 is the 7422190-th centered octagonal number.

It is an amenable number.

220355587895641 is a deficient number, since it is larger than the sum of its proper divisors (22290194276348).

220355587895641 is an frugal number, since it uses more digits than its factorization.

220355587895641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4882 (or 2441 counting only the distinct ones).

The product of its (nonzero) digits is 725760000, while the sum is 70.

The spelling of 220355587895641 in words is "two hundred twenty trillion, three hundred fifty-five billion, five hundred eighty-seven million, eight hundred ninety-five thousand, six hundred forty-one".