220532640853 has 4 divisors (see below), whose sum is σ = 252037303840. Its totient is φ = 189027977868.

The previous prime is 220532640841. The next prime is 220532640863. The reversal of 220532640853 is 358046235022.

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 220532640853 - 2²⁵ = 220499086421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220532640863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15752331483 + ... + 15752331496.

It is an arithmetic number, because the mean of its divisors is an integer number (63009325960).

Almost surely, 2^220532640853 is an apocalyptic number.

It is an amenable number.

220532640853 is a deficient number, since it is larger than the sum of its proper divisors (31504662987).

220532640853 is an equidigital number, since it uses as much as digits as its factorization.

220532640853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31504662986.

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 220532640853 its reverse (358046235022), we get a palindrome (578578875875).

The spelling of 220532640853 in words is "two hundred twenty billion, five hundred thirty-two million, six hundred forty thousand, eight hundred fifty-three".