220576345877 has 4 divisors (see below), whose sum is σ = 220577311500. Its totient is φ = 220575380256.

The previous prime is 220576345841. The next prime is 220576345919. The reversal of 220576345877 is 778543675022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 151549818436 + 69026527441 = 389294^2 + 262729^2 .

It is a cyclic number.

It is not a de Polignac number, because 220576345877 - 2⁶ = 220576345813 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 (220576345817) 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, 73499 + ... + 668247.

It is an arithmetic number, because the mean of its divisors is an integer number (55144327875).

Almost surely, 2^220576345877 is an apocalyptic number.

It is an amenable number.

220576345877 is a deficient number, since it is larger than the sum of its proper divisors (965623).

220576345877 is an equidigital number, since it uses as much as digits as its factorization.

220576345877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965622.

The product of its (nonzero) digits is 19756800, while the sum is 56.

The spelling of 220576345877 in words is "two hundred twenty billion, five hundred seventy-six million, three hundred forty-five thousand, eight hundred seventy-seven".