219920030056 has 32 divisors (see below), whose sum is σ = 434261894400. Its totient is φ = 104122437120.

The previous prime is 219920029993. The next prime is 219920030059. The reversal of 219920030056 is 650030029912.

It is a super-3 number, since 3×219920030056³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 219920029997 and 219920030024.

It is not an unprimeable number, because it can be changed into a prime (219920030059) 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, 31320 + ... + 663943.

It is an arithmetic number, because the mean of its divisors is an integer number (13570684200).

Almost surely, 2^219920030056 is an apocalyptic number.

It is an amenable number.

219920030056 is a deficient number, since it is larger than the sum of its proper divisors (214341864344).

219920030056 is a wasteful number, since it uses less digits than its factorization.

219920030056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697369 (or 697365 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

Adding to 219920030056 its reverse (650030029912), we get a palindrome (869950059968).

The spelling of 219920030056 in words is "two hundred nineteen billion, nine hundred twenty million, thirty thousand, fifty-six".