220412542673 has 4 divisors (see below), whose sum is σ = 221643897840. Its totient is φ = 219181187508.

The previous prime is 220412542657. The next prime is 220412542687. The reversal of 220412542673 is 376245214022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220412542673 - 2⁴ = 220412542657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220412542633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615677315 + ... + 615677672.

It is an arithmetic number, because the mean of its divisors is an integer number (55410974460).

Almost surely, 2^220412542673 is an apocalyptic number.

It is an amenable number.

220412542673 is a deficient number, since it is larger than the sum of its proper divisors (1231355167).

220412542673 is a wasteful number, since it uses less digits than its factorization.

220412542673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231355166.

The product of its (nonzero) digits is 161280, while the sum is 38.

Adding to 220412542673 its reverse (376245214022), we get a palindrome (596657756695).

The spelling of 220412542673 in words is "two hundred twenty billion, four hundred twelve million, five hundred forty-two thousand, six hundred seventy-three".