220666046823 has 20 divisors (see below), whose sum is σ = 337676864448. Its totient is φ = 143522629920.

The previous prime is 220666046791. The next prime is 220666046857. The reversal of 220666046823 is 328640666022.

220666046823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220666046823 - 2⁵ = 220666046791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220666042823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33219511 + ... + 33226152.

Almost surely, 2^220666046823 is an apocalyptic number.

220666046823 is a deficient number, since it is larger than the sum of its proper divisors (117010817625).

220666046823 is an equidigital number, since it uses as much as digits as its factorization.

220666046823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66445716 (or 66445707 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 220666046823 in words is "two hundred twenty billion, six hundred sixty-six million, forty-six thousand, eight hundred twenty-three".