20020220718 has 16 divisors (see below), whose sum is σ = 40056131280. Its totient is φ = 6670791936.

The previous prime is 20020220711. The next prime is 20020220719. The reversal of 20020220718 is 81702202002.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020220711) 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, 637123 + ... + 667806.

It is an arithmetic number, because the mean of its divisors is an integer number (2503508205).

Almost surely, 2^20020220718 is an apocalyptic number.

20020220718 is an abundant number, since it is smaller than the sum of its proper divisors (20035910562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020220718 is a wasteful number, since it uses less digits than its factorization.

20020220718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307491.

The product of its (nonzero) digits is 896, while the sum is 24.

The spelling of 20020220718 in words is "twenty billion, twenty million, two hundred twenty thousand, seven hundred eighteen".