220634715550643 has 4 divisors (see below), whose sum is σ = 220640971709640. Its totient is φ = 220628459391648.

The previous prime is 220634715550607. The next prime is 220634715550657. The reversal of 220634715550643 is 346055517436022.

220634715550643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220634715550643 - 2⁸ = 220634715550387 is a prime.

It is a super-2 number, since 2×220634715550643² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220634715550043) 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, 3128026598 + ... + 3128097131.

It is an arithmetic number, because the mean of its divisors is an integer number (55160242927410).

Almost surely, 2^{220634715550643} is an apocalyptic number.

220634715550643 is a deficient number, since it is larger than the sum of its proper divisors (6256158997).

220634715550643 is an equidigital number, since it uses as much as digits as its factorization.

220634715550643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6256158996.

The product of its (nonzero) digits is 18144000, while the sum is 53.

The spelling of 220634715550643 in words is "two hundred twenty trillion, six hundred thirty-four billion, seven hundred fifteen million, five hundred fifty thousand, six hundred forty-three".