218020996 has 6 divisors (see below), whose sum is σ = 381536750. Its totient is φ = 109010496.

The previous prime is 218020993. The next prime is 218021021. The reversal of 218020996 is 699020812.

218020996 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 192376900 + 25644096 = 13870^2 + 5064^2 .

It is not an unprimeable number, because it can be changed into a prime (218020993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27252621 + ... + 27252628.

Almost surely, 2^218020996 is an apocalyptic number.

It is an amenable number.

218020996 is a deficient number, since it is larger than the sum of its proper divisors (163515754).

218020996 is a wasteful number, since it uses less digits than its factorization.

218020996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54505253 (or 54505251 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 218020996 is about 14765.5340573919. The cubic root of 218020996 is about 601.8654865149.

The spelling of 218020996 in words is "two hundred eighteen million, twenty thousand, nine hundred ninety-six".