220513543542 has 24 divisors (see below), whose sum is σ = 477788880816. Its totient is φ = 73503047376.

The previous prime is 220513543517. The next prime is 220513543553. The reversal of 220513543542 is 245345315022.

220513543542 is a `hidden beast` number, since 2 + 20 + 51 + 3 + 5 + 43 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 220513543497 and 220513543506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1178788 + ... + 1352984.

It is an arithmetic number, because the mean of its divisors is an integer number (19907870034).

Almost surely, 2^220513543542 is an apocalyptic number.

220513543542 is an abundant number, since it is smaller than the sum of its proper divisors (257275337274).

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

220513543542 is a wasteful number, since it uses less digits than its factorization.

220513543542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244532 (or 244529 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 220513543542 its reverse (245345315022), we get a palindrome (465858858564).

The spelling of 220513543542 in words is "two hundred twenty billion, five hundred thirteen million, five hundred forty-three thousand, five hundred forty-two".