220543105545 has 48 divisors (see below), whose sum is σ = 445801449600. Its totient is φ = 100819698336.

The previous prime is 220543105499. The next prime is 220543105591. The reversal of 220543105545 is 545501345022.

220543105545 is a `hidden beast` number, since 2 + 2 + 0 + 5 + 4 + 3 + 105 + 545 = 666.

It is an interprime number because it is at equal distance from previous prime (220543105499) and next prime (220543105591).

It is not a de Polignac number, because 220543105545 - 2¹⁰ = 220543104521 is a prime.

It is a super-2 number, since 2×220543105545² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7128819 + ... + 7159688.

It is an arithmetic number, because the mean of its divisors is an integer number (9287530200).

Almost surely, 2^220543105545 is an apocalyptic number.

It is an amenable number.

220543105545 is an abundant number, since it is smaller than the sum of its proper divisors (225258344055).

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

220543105545 is a wasteful number, since it uses less digits than its factorization.

220543105545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14288539 (or 14288522 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 220543105545 in words is "two hundred twenty billion, five hundred forty-three million, one hundred five thousand, five hundred forty-five".