220412542671 has 12 divisors (see below), whose sum is σ = 321294533560. Its totient is φ = 145593605520.

The previous prime is 220412542657. The next prime is 220412542687. The reversal of 220412542671 is 176245214022.

220412542671 is a `hidden beast` number, since 2 + 2 + 0 + 41 + 2 + 542 + 6 + 71 = 666.

It is not a de Polignac number, because 220412542671 - 2⁹ = 220412542159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220412542601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112339765 + ... + 112341726.

Almost surely, 2^220412542671 is an apocalyptic number.

220412542671 is a deficient number, since it is larger than the sum of its proper divisors (100881990889).

220412542671 is a wasteful number, since it uses less digits than its factorization.

220412542671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224681606 (or 224681603 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

Adding to 220412542671 its reverse (176245214022), we get a palindrome (396657756693).

The spelling of 220412542671 in words is "two hundred twenty billion, four hundred twelve million, five hundred forty-two thousand, six hundred seventy-one".