220370021885 has 8 divisors (see below), whose sum is σ = 284785874520. Its totient is φ = 162734785344.

The previous prime is 220370021881. The next prime is 220370021891. The reversal of 220370021885 is 588120073022.

It can be written as a sum of positive squares in 4 ways, for example, as 7757734084 + 212612287801 = 88078^2 + 461099^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220370021885 - 2² = 220370021881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220370021881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695153950 + ... + 1695154079.

It is an arithmetic number, because the mean of its divisors is an integer number (35598234315).

Almost surely, 2^220370021885 is an apocalyptic number.

It is an amenable number.

220370021885 is a deficient number, since it is larger than the sum of its proper divisors (64415852635).

220370021885 is a wasteful number, since it uses less digits than its factorization.

220370021885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390308047.

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 220370021885 in words is "two hundred twenty billion, three hundred seventy million, twenty-one thousand, eight hundred eighty-five".