20020220018 has 8 divisors (see below), whose sum is σ = 30478544112. Its totient is φ = 9860705316.

The previous prime is 20020219931. The next prime is 20020220023. The reversal of 20020220018 is 81002202002.

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

It is a junction number, because it is equal to n+sod(n) for n = 20020219978 and 20020220005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74702180 + ... + 74702447.

It is an arithmetic number, because the mean of its divisors is an integer number (3809818014).

Almost surely, 2^20020220018 is an apocalyptic number.

20020220018 is a deficient number, since it is larger than the sum of its proper divisors (10458324094).

20020220018 is a wasteful number, since it uses less digits than its factorization.

20020220018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149404696.

The product of its (nonzero) digits is 128, while the sum is 17.

The spelling of 20020220018 in words is "twenty billion, twenty million, two hundred twenty thousand, eighteen".